Which of the Following Describes a Typical Distribution of F-Ratios $d f _ { \text {between } }$

Multiple Choice

Which of the following describes a typical distribution of F-ratios?

A) Symmetrical with a mean of zero
B) Positively skewed with all values greater than or equal to zero
C) Negatively skewed with all values greater than or equal to zero
D) Symmetrical with a mean equal to $d f _ { \text {between } }$