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sampling MCQs

Practise focused sampling questions with marked answers for exam preparation and subject revision.

sampling Mcqs
1. If the sampled population has a normal distribution, when is the sampling distribution of the sample mean X also a normal distribution ?
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A. Only when the sample size is smaller than 30

B. Only when the sample size is at least 100.

C. Always

D. Only when the sample size is at least 30.

2. A sample estimate is used to describe a characteristic of a_____________?
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A. Sample

B. Data

C. Population

D. None

3. In the sampling without replacement a sampling unit can be selected_______________?
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A. None of these

B. More than once

C. Less than once

D. Only Once
4. There are ____________ probability sampling?
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A. Six

B. Three

C. Four

D. Seven

5. Non-sample errors are reduced by:________________?
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A. None of these

B. Decreasing the sample standard deviation

C. Increasing the sample size

D. Reduced the amount of data
6. Which of the following is impossible in sampling ?
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A. To make voters lists

B. Destructive tests

C. None of these

D. Heterogeneous data

7. The smallest individuals which constitute the entire population are called __________________?
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A. Sample design

B. Sampling units

C. Sampling frame

D. Sample pop

8. If we increase the sample size, it means that it:_________________?
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A. Increases the Standard error

B. Decreases the Standard error

C. Decreases the Standard error

D. Both (a) and (b)
9. The difference between statistics and parameter is called:______________?
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A. Bias

B. Standard

C. Sampling error

D. both (a) and (b)

10. Another name of word population is_________?
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A. None of these

B. Universe

C. Whole

D. Individuals

11. Which sampling procedure we prefer if population is heterogenous?
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A. None of these

B. Stratified sampling

C. Simple random sampling

D. Cluster sampling

12. Probability distribution of a statistics is called_________________?
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A. Sampling

B. Parameter

C. Data

D. Sampling distribution
13. In sampling with replacement be t a sampling unit can selected________________?
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A. None

B. Less than once

C. Only once

D. More than once
14. Collection of information from complete population is called__________?
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A. Census

B. Complete enumeration

C. Survey

D. Both A & B
15. Sampling error can reduced by __________________?
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A. Non-random sampling

B. Increasing the sample size

C. Increasing the population

D. Decreasing the sample size

16. Non-random sampling is also called___________________?
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A. Less than sampling

B. Biased sampling

C. Representative sampling

D. Non-prob.sampling
17. The process of selecting sample from the population is called_________________?
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A. Size

B. Sampling

C. Sampling unit

D. Sampling process

18. Selection of s by the students to solve a paper is _________________?
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A. Random sampling

B. Prob.Sampling

C. Non-random sampling

D. Sampling with replacement

19. Major area of statistics today is concerned with drawing of conclusions from__________?
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A. Complete study

B. Samples

C. Primary

D. Two

20. Sampling errors are reduced by:___________________?
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A. Increasing the sample size

B. None of these

C. Increasing population s.d.

D. Decreasing the sample size