Which characteristic describes the fact that the sample mean does not tend to over- or under-estimate the population mean?

Name: Which characteristic describes the fact that the sample mean does not tend to over- or under-estimate the population mean?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

An unbiased estimator is one that does not systematically over- or under-estimate the population parameter. Therefore, choice B describes the characteristic that the sample mean does not tend to over- or under-estimate the population mean.

Which Characteristic Describes the Fact That the Sample Mean Does