CFA Practice Question

CFA Practice Question

Which of the following is incorrect?
A. An unbiased estimator of a sample mean will have an expected value equal to the population mean.
B. Efficiency is a desirable property of an estimator.
C. A consistent estimator of a sample mean will approach the value of zero as the size of the sample grows large.
Explanation: A consistent estimator of a sample mean will approach the value of the population mean as the size of the sample grows large.

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