F distribution


: a probability density function that is used especially in analysis of variance and is a function of the ratio of two independent random variables each of which has a chi-square distribution and is divided by its number of degrees of freedom

Word History


Sir Ronald Fisher †1962 English geneticist and statistician

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of F distribution was in 1942

Dictionary Entries Near F distribution

Cite this Entry

“F distribution.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/F%20distribution. Accessed 29 Sep. 2023.

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