# STT206 TMA

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
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
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

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#### 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
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
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
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
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
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
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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