STT205 Tma Solutions
1. \(\bar{X}=A+\frac{\sum (_{Xi – A})}{n}\) is the formula for calculating the __________
—>> Assumed mean
Arithmetic mean
Deviation mean
Coding mean
2. _______ is used by a person or people other than the person or people by whom or for whom the data was collected.
Primary Data
—>> Secondary Data
Direct observation
Mail questionnaire
3. Government uses ________to assess the trends in the economy so that it can plan future policies
Statistic
Questionnaire
—>> Statistics
Variable
4. _______ are data collected by or on behalf of the person or people who are going to make use of the data.
Secondary Data
—>> Primary Data
Direct observation
Mail questionnaire
5. ____ is the variable that can only assume whole numbers.
—>> Discrete Variable
Continuous variable
Double variable
Single variable
6. Accident fatalities on a particular road over a period of time collected from the Police or Road safety corps is an example of _______
—>> Secondary Data
Primary Data
Direct observation
Mail questionnaire
7. A ________ is a table showing the values of the data and the number of occurrence of each of the values.
Binomial distribution
Poisson distribution
Normal distribution
—>> Frequency Distribution
8. _______ 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.
Statistic
Questionnaire
—>> Statistics
Variable
9. ______ may be person, place, and thing on which we make observations.
—>> Entity
Statistics
Variable
Population
10. Given the mean of the upper and the lower class boundaries, that is, 10.5 and 20.5 respectively. Obtain the class mark? _______
64.5
—>> 15.5
24.5
20.5
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