Choose the Statement That Is True, According to Your Text $\hat { S }$

Multiple Choice

Choose the statement that is true, according to your text.

A) The pay for people in management is more variable than the pay for those in sales.
B) $\hat { S }$ is a biased estimate of $\sigma$
C) In reaching puberty, males are more variable than females.
D) All of the other alternatives are correct.