is used in chi-squared distribution sets, as a probability distribution of two independent chi-square (based) random variables which are both divided by their degrees of freedom. See chi squared distribution.

F DISTRIBUTION: "One of the many distributions utilized when conducting statistical tests such as chi-squared tests to a set of data is the 'f distribution'."
Cite this page: Nugent, Pam M.S., "F DISTRIBUTION," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/f-distribution/ (accessed October 22, 2017).