Which of the following statements is true?
A) The sample mean is a biased estimate of the population mean.
B) The sample standard deviation is a biased estimate of the population standard deviation.
C) The sample standard deviation is an unbiased estimate of the population standard deviation.
D) The sample standard deviation overestimates the population standard deviation.

Question

Quizplus · Accepted Answer

The sample standard deviation is a biased estimator of the population standard deviation because it tends to underestimate the population standard deviation, especially for small sample sizes. This is because it uses the sample mean instead of the true population mean, which introduces a bias.

Which of the Following Statements Is True