f distribution

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f dis·tri·bu·tion

the distribution of the ratio of two independent quantities each of which is distributed like a variance in normally distributed samples. So named in honor of the English statistician and geneticist R.A. Fisher.

F distribution

the distribution of the ratio of two independent quantities each of which is distributed like a variance in a normally distributed sample. Called also variance ratio distribution.
References in periodicals archive ?
Now suppose that some candidate i deviates from this symmetric scenario and generates offers according to some other cumulative distribution G, while all other candidates continue to use the F-distribution.
Thus, we may say that there is an equilibrium in which all candidates use the F-distribution if and only if there does not exist any probability distribution G on the nonnegative real numbers, with mean 1, such that
Then there is an equilibrium under single transferable vote in which all candidates generate offers according to the F-distribution.
Given that the random errors in the indirect forms (12) have the same variances for all industries, the appropriate test statistic has F-distribution with degrees of freedom 9 and 26.
Under the assumptions of the VES production function (11), it follows that if these two parameters are zero, then the appropriate test statistic has F-distribution with degrees of freedom 2 and n-4, where n is the number of sample firms in the industry involved.