**Q1 The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation yi**

80

84

88

81

**Q2 The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation xi**

50

55

60

65

**Q3 A graphical method of showing correlation between two variables is called**

Cartesian diagram

dotted plotting

scatter diagram

none of the above

**Q4 When the correlation coefficient r, equals zero, then**

there�??s a perfect correlation

there�??s no correlation

there�??s a linear correlation

there�??s a non-uniform correlation

**Q5 Correlation values ranges from**

-1 to 1

0 to 1

-1 to 0

-2 to 2

**Q6 The following are types of correlation except**

positive

negative

quadratic

linear

**Q7 Distributions involving two discrete variables are called**

bivariate distributions

univariate distributions

all of the above

none of the above

**Q8 Distributions in which there are only one variable are called**

bivariate distributions

univariate distributions

all of the above

none of the above

**Q9 Data collected on a particular variable or set of variables over time is called**

Panel data

Time Series Data

null data

none of the above

**Q10 Compute the harmonic mean of 5, 6 and 7**

2.57

3.56

4.77

5,58

**Q11 Calculate the standard deviation of the date in the table below **

0.91

0.82

0.5

0.75

**Q12 Calculate the variance of the date in the table below **

0.84

1.5

0.95

0.54

**Q13 Calculate the mean of the date in the table below **

1.96

1.55

1.35

2

**Q14 A graphical method of showing correlation between two variables is called**

Cartesian diagram

dotted plotting

scatter diagram

none of th e above

**Q15 Distributions involving two discrete variables are called**

bivariate distributions

univariate distributions

all of the above

none of th e above

**Q16 Distributions in which there are only one variable are called**

bivariate distributions

univariate distributions

all of the above

none of th e above

**Q17 Classification of data based on sources gives rise to**

primary data

secondary data

all of the above

none of th e above

**Q18 The first moment about mean is given by \[ H_{1}=\]**

\[\frac{\sum fi x^{2}}{N}\]

\[\frac{\sum x^{2}}{N}\]

\[\frac{\sum fi x^{2}}{N}\]

none of th e above

**Q19 Given the data, 5, 8, 3, 4, 6, 1. Obtain first noncentral moment**

4.5

5.2

2.3

3.6

**Q20 Consider a set of data on monthly sales of a company****�****??s product, the mean of which was found to be N240,000; the mode found to be N135,000; and the standard deviation found to be N85,000. Calculate Coefficient of skewness**

1.24

1.30

1.50

2.2

**Q21 The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation yi**

80

84

88

81

**Q22 The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation xi**

50

55

60

65

**Q23 A graphical method of showing correlation between two variables is called**

Cartesian diagram

dotted plotting

scatter diagram

none of the above

**Q24 When the correlation coefficient r, equals zero, then**

there�??s a perfect correlation

there�??s no correlation

there�??s a linear correlation

there�??s a non-uniform correlation

**Q25 Correlation values ranges from**

-1 to 1

0 to 1

-1 to 0

-2 to 2

**Q26 The following are types of correlation except**

positive

negative

quadratic

linear

**Q27 Distributions involving two discrete variables are called**

bivariate distributions

univariate distributions

all of the above

none of the above

**Q28 Distributions in which there are only one variable are called**

bivariate distributions

univariate distributions

all of the above

none of the above

**Q29 Data collected on a particular variable or set of variables over time is called**

Panel data

Time Series Data

null data

none of the above

**Q30 Compute the harmonic mean of 5, 6 and 7**

2.57

3.56

4.77

5,58

**Q31 The second quartile is equivalent to the**

median

variance

standard deviation

mean

**Q32 The boundaries separating the items in a given distribution into quarters are called**

deviation

quartiles

ranges

mean deviation

**Q33 What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?**

17

16

15

9

**Q34 The difference between the highest observation and the lowest observation is called**

the range

variance

standard deviation

coefficient of variation

**Q35 The following are measurement scales except**

nomial

ordinal

interval

none of th e above

**Q36 Variables whose values are fractional and are points on an internal are called**

discrete variables

continuous variables

whole variables

none of th e above

**Q37 Variables whose values are whole numbers or integers are called**

continuous variables

whole variables

discrete variable

none of th e above

**Q38 Quantitative variable can be classified into**

discrete variable

continuous variable

all of the above

none of th e above

**Q39 A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop ____**

1000000

540

120

1200000

**Q40 Any characteristics of an object that is capable of assuming different values is called**

constant

variable

category

concept

**Q41 The second quartile is equivalent to the**

median

variance

standard deviation

mean

**Q42 The boundaries separating the items in a given distribution into quarters are called**

deviation

quartiles

ranges

mean deviation

**Q43 What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?**

17

16

15

9

**Q44 The difference between the highest observation and the lowest observation is called**

the range

variance

standard deviation

coefficient of variation

**Q45 The following are measurement scales except**

nomial

ordinal

interval

none of th e above

**Q46 Variables whose values are fractional and are points on an internal are called**

discrete variables

continuous variables

whole variables

none of th e above

**Q47 Variables whose values are whole numbers or integers are called**

continuous variables

whole variables

discrete variable

none of th e above

**Q48 Quantitative variable can be classified into**

discrete variable

continuous variable

all of the above

none of th e above

**Q49 A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop ____**

1000000

540

120

1200000

**Q50 Any characteristics of an object that is capable of assuming different values is called**

constant

variable

category

concept

Whatsapp 08039407882

#### SMS202 List of eExam Questions in the Bank

*Latex formatted questions may not properly render*

**Q1 The mean, mode, medium, variance etc are examples of _estimates.**

**Q2 __refers to the formula or statistic which has been chosen to provide an estimate of the population value.**

**Q3 An is value of the sample statistic which is taken as an approximation of the parameter value.**

**Q4 cannot control who fills out the questionnaire.**

**Q5 The concept of is central to sampling theory and to determining the size of a sample.**

**Q6 is more convenient than simple random sampling.**

**Q7 the basic probability sampling design, and it is incorporated into all the more elaborate probability sampling designs.**

**Q8 is to select a sample that is as similar as possible to the sampling population.**

**Q9 A single member of a sampling population is referred to as a **

**Q10 A particular value of the population, such as the mean income or the level of formal education, is called a **

**Q11 These are problems encountered in the construction of index numbers except **

**Q12 Forecast simply means statement **

**Q13 It has been found that 2% of the tools produced by a certain machine are defective. What is the probability that in a shipment of 400 such tools is **

**Q14 One way in which a representative sample may be obtained from a population is by **

**Q15 Sampling distribution is the **

**Q16 A particular value of the population, such as the mean income or the level of formal education, is called **

**Q17 combine the features of cross-sectional and time-series data.**

**Q18 Government uses statistics during **

**Q19 Data collected for cross-section of subjects (population under study) at a time is called **

**Q20 Data collected on a particular variable or set of variables over time is know as **

**Q21 advocate that the current year quantities are taken as weights**

**Q22 advocated the geometric cross of Laspeyre’s and Paasche’s Price index numbers**

**Q23 Aggregate of prices (of all the selected commodities) in the current year as a percentage of the aggregate of prices in the base year know as **

**Q24 reflect changes in the retail prices of different commodities. The are normally constructed for different classes of consumers know as **

**Q25 reflect changes in the volume of goods produced or consumed know as _-**

**Q26 most common index numbers are the price index numbers which study changes in price level of commodities over a period of time is know as **

**Q27 are indicators which reflect the relative changes in the level of certain phenomenon in any given period**

**Q28 Under certainty, the decision maker simply the outcome of each alternative and selects the one that best meets his/her objective**

**Q29 looks for the attributes or qualities of the product .i.e. comparison of the best one**

**Q30 is the comparison of one thing with another that has similar features**

**Q31 __is a method base on two head is better than one.**

**Q32 Is the logical approach, it answers questions like What, Who, Where, How, When and Why**

**Q33 defined as the logical and quantitative analysis of all the factors influencing a decision**

**Q34 thinking considers end rather than means**

**Q35 The art of problem solving and decision making is base on **

**Q36 The scientific method for collecting, organizing, summarizing, presenting and analysing data is called **

**Q37 The two main types of statistics are **

**Q38 The number of times that a variable occur is called **

**Q39 Frequency distribution involves **

**Q40 The probability that an event will occur is **

**Q41 The probability of obtaining an even number in a single toss of a fair die is **

**Q42 are forecasts based solely on past and present values of the variable to be forecast.**

**Q43 If a die is tossed once. What is the probability of obtaining even or prime number? **

**Q44 y = a + b1X1 + b2X2 is **

**Q45 y = a + bx is **

**Q46 The probability of obtaining at least two heads in a toss of a fair die trice is **

**Q47 are based on past performances.**

**Q48 is not designed to test equality of several population variances.**

**Q49 The sum of the absolute difference between consecutives set of data xj and mean x of the data divided by the number of data is **

**Q50 Two events A and B are said to be __, if they cannot occur together**

**Q51 The degree of asymmetry, or departure from symmetry of a distribution is known as **

**Q52 ANOVA can be (a) way classification or (b) two-way classification.**

**Q53 O1, O2, O3, ……….Ok, called frequencies.**

**Q54 All one tailed tests for at level of significance “α” will be right tailed tests only with area “α” in the right.**

**Q55 Sampling distribution is the **

**Q56 analysis is the modern approach to decision making both in economics and in business**

**Q57 The formula used in calculating Pearson’s No. 1 Coefficient of skewness is **

**Q58 A complete absence of skewness would have a coefficient of skewness equal to **

**Q59 leptokurtic, platykurtic and mesokurtic is otherwise known as _distribution curve**

**Q60 measures the degree of peakedness of a distribution. It is usually taken relative to a normal distribution**

**Q61 The moment coefficient of kurlosis is used to calculate the of a distribution**

**Q62 Pearson’s first coefficient of skewness and Pearson’s second coefficient of skewness is called **

**Q63 is useful in the comparison of two or more sets of data which are measured in the same units but differ to such an extent that a direct comparison of the respective standard deviations is not very helpful**

**Q64 Given the arrayed data: X = 2,5,8,9,12,13,18,the range will be **

**Q65 can be said to measure the degree of uniformity of observations in a given set of data**

**Q66 can be an unsatisfactory measure of dispersion because it is affected by extreme values or items which renders it unrepresentative of majority of the set of data**

**Q67 variables include sex, in religious or party affIliation, genotype, blood group, place of residence know as **

**Q68 scale has all the properties of the nominal, ordinal and interval scales including the additional property of having an absolute zero point know as **

**Q69 can be defined as a management tool for making decision. It is also a scientific approach to presentation of numerical information in such a way that one will have a maximum understanding of the reality represented by such information.**

**Q70 Government uses as a tool for collecting data on economic aggregates such as national income, savings, consumption and gross national product**

**Q71 is a variable whose values are given as numerical quantities**

**Q72 In studying the nutritional well being of pupils in a primary school, the is a pupil in the school.**

**Q73 is a characteristic that assumes different values for different entities**

**Q74 is the part of the population that is selected for a study**

**Q75 _variable that can assume both decimal and non decimal values**

**Q76 _____________ occur naturally in all spheres of business activity.**

time series

numerical data

cummulative

none of the above

**Q77 ________can be used to generate the general picture (or trend) behind a set of data or time series.**

time series

moving average

ratio

scatter

**Q78 ________ are forecasts based solely on past and present values of the variable to be forecast.**

short term

contrapolation

extrapolation

all of the above

**Q79 ___________ are forecasts concerning the near future.**

long term forecast

short term forecast

middle term forecast

none of the above

**Q80 ________ are based on past performances.**

forecasts

regression

Indifference

efficient

**Q81 __________ is not designed to test equality of several population variances.**

Anova

Canova

correlation

none of the above

**Q82 ANOVA technique enables us to compare several __________ means simultaneously.**

multiple

spearsmans

measures

population

**Q83 ANOVA can be (a) ______ way classification or (b) two-way classification.**

eight

ten

five

one

**Q84 __________ as a tool has different dimensions and complexities.**

Regression

Manova

Anova

Analysis

**Q85 O1, O2, O3, ……….Ok, called ____________frequencies.**

expected

observed

maximum

ratio

**Q86 ___________ test of goodness of fit.**

Chi-square

variance

sample

all of the above

**Q87 The square of a standard normal variable is called a __________**

statistics

seven square

four square

Chi-square

**Q88 All one tailed tests for _____ at level of significance “α” will be right tailed tests only with area “α” in the right.**

Yo

Po

Ho

Zo

**Q89 For _____tailed tests, the critical valuesare located in the right tail of F-distribution with area (α/2) in the right tail.**

seven

hundred

two

eleven

**Q90 ______statistic is the ratio of two independent chi-square variates divided by their respective degrees of freedom.**

A

F

M

O

**Q91 Hypothesis testing starts with a ___________ about population parameters such as mean.**

Skewness

Average

statement

Corporation

**Q92 __________ testing or testing a hypothesis are used interchangeably.**

hypotheses

regression

primary data

tertiary data

**Q93 Relationship that connect three or more variables together are called _____________**

single correlation regression

auto correlation

semi multiple correlation

multiple correlation regression

**Q94 Two variables can either be positively or _________correlated.**

negatively

positively

mathematically

none of the above

**Q95 3 main types of curve are __________**

Exponential curve

Hyperbolic curve

Power curve model

all of the above

**Q96 ____mathematical method of determined the points estimate of ‘a’ and ‘b’ from the available sample points.**

Least Square Method

Least Cost Method

cummulative

none of the above

**Q97 Regression line is fitted into the ________diagram**

mission statement

composite measure

unscatter

scatter

**Q98 y = a + b1X1 + b2X2 is________________**

multiple regression

one regression

standard regression

all of the above

**Q99 y = a + bx is ___________**

annually regression

partial regression

multiple regression

simple regression

**Q100 _____________ analysis can be defined as the relationship between two or more variables.**

correlation

regression

Indifference

efficient

**Q101 Formular for spearsmans rank correlation _____________**

1-6(∑d²)/n(n²-7)

1-6(∑d²)/nm(n²-1)

1-6(∑d²)/n(n²-1)

1-6(∑d²)/n(m²-1)

**Q102 ___________ coefficient of correlation assumes the data to be at least interval scale**

multiple

spearsmans

measures

parameter

**Q103 Degree of relationship that connected three or more variables together is called_________.**

Continuous Variable

Population

addition correlation

Multiple correlation

**Q104 The degree of relationship existing between two variables is called ________**

Discrete Variable

hard correlation

simple correlation

Analysis

**Q105 _________ can be defined as the branches of statistics that deals with mutual dependence or inter-relationship of two or more variables.**

correlation

regression

durbin watson

ratio

**Q106 The mean, mode, medium, variance etc are examples of _______estimates.**

point

variance

sample

all of the above

**Q107 _____refers to the formula or statistic which has been chosen to provide an estimate of the population value.**

statistics

sample

parameter

estimator

**Q108 An ______ is value of the sample statistic which is taken as an approximation of the parameter value.**

variance

target

estimate

none of the above

**Q109 ________ cannot control who fills out the questionnaire.**

survey

researchers

literature

data

**Q110 The concept of __________ is central to sampling theory and to determining the size of a sample.**

standard error

marginal error

error term

minus errro

**Q111 ____________ is more convenient than simple random sampling.**

cluster sampling

stratified sampling

Systematic sampling

none of the above

**Q112 __________ the basic probability sampling design, and it is incorporated into all the more elaborate probability sampling designs.**

quota sampling

interviewers

convenience sample

Simple random sampling

**Q113 _____________ is to select a sample that is as similar as possible to the sampling population.**

sampling techniques

probability sample

quota sample

sample size

**Q114 A single member of a sampling population is referred to as a _________**

Skewed

survey

Population

sampling unit

**Q115 A particular value of the population, such as the mean income or the level of formal education, is called a _________**

barometer

parameter

manometer

none of the above

**Q116 The entire set of relevant units of analysis, or data is called the _________**

review

methodology

Population

research

**Q117 _________ index is termed as an ideal index since it satisfies time reversal and factor reversal test for the consistency of index numbers.**

fishers

laspyers

dorbish

bowleys

**Q118 __________ depict changes in the general price level of the economy.**

none of the above

consumer

retail

wholesale

**Q119 ________ numbers are indicators which reflect the relative changes in the level of certain phenomenon in any given period.**

index

price

change

export

**Q120 The concept of expected monetary value applies ________ expectation**

scientific

biological

mathematical

functional

**Q121 Decision makers are generally interested in the ___________ monetary value decisions.**

monetary

minimal

maximal

optimal

**Q122 The payoff table is usually displayed in _________ form.**

Strategy

diagonal

grid

label

**Q123 Decision making under uncertainty is always ___________**

complicated

selecting

framework

all of the above

**Q124 Decision making under certainty appears to be simpler than that under ___________**

outcome

uncertainty

appraises

alternatives

**Q125 ____________ is the comparison of one thing with another that has similar features.**

Semi digital

Digital

Analogue

Speculation

**Q126 The art of problem solving and decision making is base on _________**

common sense

research problem

decision tree

all of the above

**Q127 _____________ is a method base on two head is better than one.**

Service

critical control

Critical examination

Brain Storming

**Q128 A good decision must be consistent with the information and preferences of the __________**

market decision

decision maker

Innovatives decision

none of the above

**Q129 ______ is the modern approach to decision making both in economics and in business.**

numerical data

operations research

game theory

decision analysis

**Q130 The mesokurtic is otherwise known as normal _________**

distribution curve

normal curve

binomial curve

ratio curve

**Q131 ________ measures the degree of peakedness of a distribution.**

Skewness

Average

Kurtosis

Corporation

**Q132 Mean, the mode, and the standard deviation are all expressed in the units of ________**

original data

secondary data

primary data

tertiary data

**Q133 The formula used in calculating Pearson’s No. 1 Coefficient of skewness is _______**

Sk = Mode – Median/ð

Sk = Mode – Mode/ð

Sk = Mean – Mode/ð

Sk = Median – Mode/ð

**Q134 A distribution which is not symmetrical is said to be _____**

Skewed

Scroll

Population

Sample

**Q135 The measures of skewness are generally called _______**

asymmetry

Pearson’s coefficient

distribution

none of the above

**Q136 __________ is also useful in the comparison of two or more sets of data.**

coefficient of variation

standard deviation

cummulative

none of the above

**Q137 Coefficient of variation is a __________**

mission statement

composite measure

relative measure

all of the above

**Q138 Given the arrayed data: X = 2,5,8,9,12,13,18,the range will be ________**

R = 18 – 2 = 16

R = 9 – 12 = -3

R = 13 – 9 = 4

R = 5 – 18 = -13

**Q139 Quartile Deviation is**

P2-P2/2

P4-Q1/2

Q1-Q1/2

Q3-Q1/2

**Q140 ________ are the boundaries separating the items in a given distribution or set of data into quarters.**

Quartiles

Semi Quartiles

Indifference

efficient

**Q141 _________ difference between the highest observation and the lowest observation in a distribution.**

Subtraction

Addition

Range

Multiplication

**Q142 ________ is the part of the population that is selected for a study.**

Strategy

Sample

Strategy as plan

Strategy as position

**Q143 ________ is a variable that can assume both decimal and non decimal values.**

Continuous Variable

Population

Ratio

all of the above

**Q144 ________ is the variable that can only assume whole numbers.**

Discrete Variable

Entity

Quantitative

Analysis

**Q145 ________ is a variable whose values are given as numerical quantities.**

Quantitative Variable

Qualitative Variable

Random

Patronage

**Q146 _________makes use of statistics in production,marketing, administration and in personnel management.**

Contractor

Business

Company

none of the above

**Q147 Government uses statistics during ________**

Service

Consumer

Census

Skills

**Q148 statistics is useful in all spheres of ______**

Group

human life

Innovatives

Reduction

**Q149 statistics are concerned with ___________**

numerical data

Condition

comparison

all of the above

**Q150 Statistics can be defined as a ____________**

management tool for making decision.

Backward integration

None of the above

decrease in decision

**Q151 The mean deviation of the set of data 7,6,3,4,10 is **

**Q152 The mean deviation of the set of data 8,7,11,6,16,4,11 **

**Q153 Find the mode of the data below 2,3,3,4,2,6,3,3,4,4,4 **

**Q154 Find the median of the following data 8,3,5,2,6,7,3,9 **

**Q155 Find the root mean square of the heights in ft of 5 students in a class – 3,2,4,6,7 **

**Q156 Obtain the harmonic mean of the following data 3,2,6,4, **

**Q157 Obtain the geometric mean of the following data 3,2,6,4 **

**Q158 The following are advantages of arithmetic mean except **

**Q159 The number of employees in commercial banks in Ibadan are given as 4368, 4387, 4331, 4383, 4356, 4369. Find the mean (a) **

**Q160 The heights in meters of 12 wallnut seeding, after twenty years growth are 4, 5, 6, 3, 7, 2, 8, 5, 3, 4.8, 4.5, 7.2, 5.2. **

**Q161 These are problems encountered in the construction of index numbers except **

**Q162 Forecast simply means statement **

**Q163 It has been found that 2% of the tools produced by a certain machine are defective. What is the probability that in a shipment of 400 such tools is **

**Q164 One way in which a representative sample may be obtained from a population is by **

**Q165 Sampling distribution is the **

**Q166 A particular value of the population, such as the mean income or the level of formal education, is called **

**Q167 combine the features of cross-sectional and time-series data.**

**Q168 Government uses statistics during **

**Q169 Data collected for cross-section of subjects (population under study) at a time is called **

**Q170 Data collected on a particular variable or set of variables over time is know as **

**Q171 advocate that the current year quantities are taken as weights**

**Q172 advocated the geometric cross of Laspeyre’s and Paasche’s Price index numbers**

**Q173 Aggregate of prices (of all the selected commodities) in the current year as a percentage of the aggregate of prices in the base year know as **

**Q174 reflect changes in the retail prices of different commodities. The are normally constructed for different classes of consumers know as **

**Q175 reflect changes in the volume of goods produced or consumed know as _-**

**Q176 most common index numbers are the price index numbers which study changes in price level of commodities over a period of time is know as **

**Q177 are indicators which reflect the relative changes in the level of certain phenomenon in any given period**

**Q178 Under certainty, the decision maker simply the outcome of each alternative and selects the one that best meets his/her objective**

**Q179 looks for the attributes or qualities of the product .i.e. comparison of the best one**

**Q180 is the comparison of one thing with another that has similar features**

**Q181 __is a method base on two head is better than one.**

**Q182 Is the logical approach, it answers questions like What, Who, Where, How, When and Why**

**Q183 defined as the logical and quantitative analysis of all the factors influencing a decision**

**Q184 thinking considers end rather than means**

**Q185 The art of problem solving and decision making is base on **

**Q186 The scientific method for collecting, organizing, summarizing, presenting and analysing data is called **

**Q187 The two main types of statistics are **

**Q188 The number of times that a variable occur is called **

**Q189 Frequency distribution involves **

**Q190 The probability that an event will occur is **

**Q191 The probability of obtaining an even number in a single toss of a fair die is **

**Q192 The mode of the set of data 1,2,3,3,2, 1 is **

**Q193 If a die is tossed once. What is the probability of obtaining even or prime number? **

**Q194 Find the mode of the data below 2,3,3,4,2,6,3,3,4,4,4 **

**Q195 The range of the set of data 5,4,4,3,3,3,3 is **

**Q196 The probability of obtaining at least two heads in a toss of a fair die trice is **

**Q197 The harmonic mean of 2,4,6 is **

**Q198 Obtain the geometric mean of the set of data 2,4,6 **

**Q199 The sum of the absolute difference between consecutives set of data xj and mean x of the data divided by the number of data is **

**Q200 Two events A and B are said to be __, if they cannot occur together**

**Q201 The degree of asymmetry, or departure from symmetry of a distribution is known as **

**Q202 The third moment about the mean of the data 2,3,4,5,6 is **

**Q203 The range of the set of data 20,21,23,25,28,30,35,37,38,40 is **

**Q204 The arithmetic mean of 5,5,5,5,7,7,7,8,8,8,8,8,6,6,4,4 is **

**Q205 Sampling distribution is the **

**Q206 analysis is the modern approach to decision making both in economics and in business**

**Q207 Pearson’s No. 2 coefficient of skewness uses the difference between the **

**Q208 A complete absence of skewness would have a coefficient of skewness equal to **

**Q209 leptokurtic, platykurtic and mesokurtic is otherwise known as _distribution curve**

**Q210 measures the degree of peakedness of a distribution. It is usually taken relative to a normal distribution**

**Q211 The moment coefficient of kurlosis is used to calculate the of a distribution**

**Q212 Pearson’s first coefficient of skewness and Pearson’s second coefficient of skewness is called **

**Q213 is useful in the comparison of two or more sets of data which are measured in the same units but differ to such an extent that a direct comparison of the respective standard deviations is not very helpful**

**Q214 Consider the arrayed data, X = 2,5,8,9,12,13,18. Find mean deviation **

**Q215 can be said to measure the degree of uniformity of observations in a given set of data**

**Q216 can be an unsatisfactory measure of dispersion because it is affected by extreme values or items which renders it unrepresentative of majority of the set of data**

**Q217 variables include sex, in religious or party affIliation, genotype, blood group, place of residence know as **

**Q218 scale has all the properties of the nominal, ordinal and interval scales including the additional property of having an absolute zero point know as **

**Q219 can be defined as a management tool for making decision. It is also a scientific approach to presentation of numerical information in such a way that one will have a maximum understanding of the reality represented by such information.**

**Q220 Government uses as a tool for collecting data on economic aggregates such as national income, savings, consumption and gross national product**

**Q221 is a variable whose values are given as numerical quantities**

**Q222 In studying the nutritional well being of pupils in a primary school, the is a pupil in the school.**

**Q223 is a characteristic that assumes different values for different entities**

**Q224 is the part of the population that is selected for a study**

**Q225 _variable that can assume both decimal and non decimal values**

**Q226 _____________ occur naturally in all spheres of business activity.**

time series

numerical data

cummulative

none of the above

**Q227 ________can be used to generate the general picture (or trend) behind a set of data or time series.**

time series

moving average

ratio

scatter

**Q228 ________ are forecasts based solely on past and present values of the variable to be forecast.**

short term

contrapolation

extrapolation

all of the above

**Q229 ___________ are forecasts concerning the near future.**

long term forecast

short term forecast

middle term forecast

none of the above

**Q230 ________ are based on past performances.**

forecasts

regression

Indifference

efficient

**Q231 __________ is not designed to test equality of several population variances.**

Anova

Canova

correlation

none of the above

**Q232 ANOVA technique enables us to compare several __________ means simultaneously.**

multiple

spearsmans

measures

population

**Q233 ANOVA can be (a) ______ way classification or (b) two-way classification.**

eight

ten

five

one

**Q234 __________ as a tool has different dimensions and complexities.**

Regression

Manova

Anova

Analysis

**Q235 O1, O2, O3, ……….Ok, called ____________frequencies.**

expected

observed

maximum

ratio

**Q236 ___________ test of goodness of fit.**

Chi-square

variance

sample

all of the above

**Q237 The square of a standard normal variable is called a __________**

statistics

seven square

four square

Chi-square

**Q238 All one tailed tests for _____ at level of significance “α” will be right tailed tests only with area “α” in the right.**

Yo

Po

Ho

Zo

**Q239 For _____tailed tests, the critical valuesare located in the right tail of F-distribution with area (α/2) in the right tail.**

seven

hundred

two

eleven

**Q240 ______statistic is the ratio of two independent chi-square variates divided by their respective degrees of freedom.**

A

F

M

O

**Q241 Hypothesis testing starts with a ___________ about population parameters such as mean.**

Skewness

Average

statement

Corporation

**Q242 __________ testing or testing a hypothesis are used interchangeably.**

hypotheses

regression

primary data

tertiary data

**Q243 Relationship that connect three or more variables together are called _____________**

single correlation regression

auto correlation

semi multiple correlation

multiple correlation regression

**Q244 Two variables can either be positively or _________correlated.**

negatively

positively

mathematically

none of the above

**Q245 3 main types of curve are __________**

Exponential curve

Hyperbolic curve

Power curve model

all of the above

**Q246 ____mathematical method of determined the points estimate of ‘a’ and ‘b’ from the available sample points.**

Least Square Method

Least Cost Method

cummulative

none of the above

**Q247 Regression line is fitted into the ________diagram**

mission statement

composite measure

unscatter

scatter

**Q248 y = a + b1X1 + b2X2 is________________**

multiple regression

one regression

standard regression

all of the above

**Q249 y = a + bx is ___________**

annually regression

partial regression

multiple regression

simple regreeion

**Q250 _____________ analysis can be defined as the relationship between two or more variables.**

correlation

regression

Indifference

efficient

**Q251 Formular for spearsmans rank correlation _____________**

1-6(∑d²)/n(n²-7)

1-6(∑d²)/nm(n²-1)

1-6(∑d²)/n(n²-1)

1-6(∑d²)/n(m²-1)

**Q252 ___________ coefficient of correlation assumes the data to be at least interval scale**

multiple

spearsmans

measures

parameter

**Q253 Degree of relationship that connected three or more variables together is called_________.**

Continuous Variable

Population

addition correlation

Multiple correlation

**Q254 The degree of relationship existing between two variables is called ________**

Discrete Variable

hard correlation

simple correlation

Analysis

**Q255 _________ can be defined as the branches of statistics that deals with mutual dependence or inter-relationship of two or more variables.**

correlation

regression

durbin watson

ratio

**Q256 The mean, mode, medium, variance etc are examples of _______estimates.**

point

variance

sample

all of the above

**Q257 _____refers to the formula or statistic which has been chosen to provide an estimate of the population value.**

statistics

sample

parameter

estimator

**Q258 An ______ is value of the sample statistic which is taken as an approximation of the parameter value.**

variance

target

estimate

none of the above

**Q259 ________ cannot control who fills out the questionnaire.**

survey

researchers

literature

data

**Q260 The concept of __________ is central to sampling theory and to determining the size of a sample.**

standard error

marginal error

error term

minus errro

**Q261 ____________ is more convenient than simple random sampling.**

cluster sampling

stratified sampling

Systematic sampling

none of the above

**Q262 __________ the basic probability sampling design, and it is incorporated into all the more elaborate probability sampling designs.**

quota sampling

interviewers

convenience sample

Simple random sampling

**Q263 _____________ is to select a sample that is as similar as possible to the sampling population.**

sampling techniques

probability sample

quota sample

sample size

**Q264 A single member of a sampling population is referred to as a _________**

Skewed

survey

Population

sampling unit

**Q265 A particular value of the population, such as the mean income or the level of formal education, is called a _________**

barometer

parameter

manometer

none of the above

**Q266 The entire set of relevant units of analysis, or data is called the _________**

review

methodology

Population

research

**Q267 _________ index is termed as an ideal index since it satisfies time reversal and factor reversal test for the consistency of index numbers.**

fishers

laspyers

dorbish

bowleys

**Q268 __________ depict changes in the general price level of the economy.**

none of the above

consumer

retail

wholesale

**Q269 ________ numbers are indicators which reflect the relative changes in the level of certain phenomenon in any given period.**

index

price

change

export

**Q270 The concept of expected monetary value applies ________ expectation**

scientific

biological

mathematical

functional

**Q271 Decision makers are generally interested in the ___________ monetary value decisions.**

monetary

minimal

maximal

optimal

**Q272 The payoff table is usually displayed in _________ form.**

Strategy

diagonal

grid

label

**Q273 Decision making under uncertainty is always ___________**

complicated

selecting

framework

all of the above

**Q274 Decision making under certainty appears to be simpler than that under ___________**

outcome

uncertainty

appraises

alternatives

**Q275 ____________ is the comparison of one thing with another that has similar features.**

Semi digital

Digital

Analogue

Speculation

**Q276 The art of problem solving and decision making is base on _________**

common sense

research problem

decision tree

all of the above

**Q277 _____________ is a method base on two head is better than one.**

Service

critical control

Critical examination

Brain Storming

**Q278 A good decision must be consistent with the information and preferences of the __________**

market decision

decision maker

Innovatives decision

none of the above

**Q279 ______ is the modern approach to decision making both in economics and in business.**

numerical data

operations research

game theory

decision analysis

**Q280 The mesokurtic is otherwise known as normal _________**

distribution curve

normal curve

binomial curve

ratio curve

**Q281 ________ measures the degree of peakedness of a distribution.**

Skewness

Average

Kurtosis

Corporation

**Q282 Mean, the mode, and the standard deviation are all expressed in the units of ________**

original data

secondary data

primary data

tertiary data

**Q283 The formula used in calculating Pearson’s No. 1 Coefficient of skewness is _______**

Sk = Mode – Median/ð

Sk = Mode – Mode/ð

Sk = Mean – Mode/ð

Sk = Msdian – Mode/ð

**Q284 A distribution which is not symmetrical is said to be _____**

Skewed

Scroll

Population

Sample

**Q285 The measures of skewness are generally called _______**

asymmetry

Pearson’s coefficient

distribution

none of the above

**Q286 __________ is also useful in the comparison of two or more sets of data.**

coefficient of variation

standard deviation

cummulative

none of the above

**Q287 Coefficient of variation is a __________**

mission statement

composite measure

relative measure

all of the above

**Q288 Given the arrayed data: X = 2,5,8,9,12,13,18,the range will be ________**

R = 18 – 2 = 16

R = 9 – 12 = -3

R = 13 – 9 = 4

R = 5 – 18 = -13

**Q289 Quartile Deviation is**

P2-P2/2

P4-Q1/2

Q1-Q1/2

Q3-Q1/2

**Q290 ________ are the boundaries separating the items in a given distribution or set of data into quarters.**

Quartiles

Semi Quartiles

Indifference

efficient

**Q291 _________ difference between the highest observation and the lowest observation in a distribution.**

Subtraction

Addition

Range

Multiplication

**Q292 ________ is the part of the population that is selected for a study.**

Strategy

Sample

Strategy as plan

Strategy as position

**Q293 ________ is a variable that can assume both decimal and non decimal values.**

Continuous Variable

Population

Ratio

all of the above

**Q294 ________ is the variable that can only assume whole numbers.**

Discrete Variable

Entity

Quantitative

Analysis

**Q295 ________ is a variable whose values are given as numerical quantities.**

Quantitative Variable

Qualitative Variable

Random

Patronage

**Q296 _________makes use of statistics in production,marketing, administration and in personnel management.**

Contractor

Business

Company

none of the above

**Q297 Government uses statistics during ________**

Service

Consumer

Census

Skills

**Q298 statistics is useful in all spheres of ______**

Group

human life

Innovatives

Reduction

**Q299 statistics are concerned with ___________**

numerical data

Condition

comparison

all of the above

**Q300 Statistics can be defined as a ____________**

management tool for making decision.

Backward integration

None of the above

decrease in decision

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