Given the same set of data for a population and sample,would the mean for both data sets be equal?
A)no,the population mean would be larger
B)no,the sample mean would be larger
C)yes,but only if the sample size equaled the population size
D)yes,this would be true anytime both data sets are the same

Question

Quizplus · Accepted Answer

The mean for both data sets would be equal if the sample is representative of the population and randomly selected. The sample mean is an estimator of the population mean, and as such, it should be a good approximation of the population mean if the sample is selected randomly and represents the population well. Therefore, the answer is D, and it is true regardless of the sample size.

Given the Same Set of Data for a Population and Sample,would