Which of the following statements is (are) true?
A) The sample mean is relatively more efficient than the sample median.
B) The sample median is relatively more efficient than the sample mean.
C) The sample variance is relatively more efficient than the sample variance.
D) All of these choices are correct.

Question

Quizplus · Accepted Answer

The sample mean is generally more efficient than the sample median in terms of statistical efficiency, especially for normally distributed data, because it uses all data points and minimizes the variance of the estimator.

Which of the Following Statements Is (Are) True