Which of the following is correct?
A)Every sample contains information about its population and there is never any sampling error.
B)Few samples contain information about populations, demographics give you information about populations.
C)Every sample contains information about its population and there is always some sampling error.
D)Populations that contain information about samples are free of sampling errors.
E)Sampling errors are not free, they are costly and contain poor estimators.

Question

Quizplus · Accepted Answer

Every sample contains information about its population, but there is always some degree of sampling error, which comes from the fact that a sample is just a subset of the population and may not perfectly represent it. Option A is incorrect because there is always some degree of sampling error. Option B is incorrect because while demographics can give information about populations, samples can also provide valuable information. Option D is incorrect because populations do not contain information about samples, rather samples provide information about populations. Option E is incorrect because sampling errors are not intentional and do not necessarily lead to poor estimators.

Which of the Following Is Correct