mf: Mean and Variance of the F Distribution

View source: R/moments.R

mfR Documentation

Mean and Variance of the F Distribution

Description

The F distribution with df1 = n_1 and df2 = n_2 degrees of freedom has mean and variance: \mu = \frac{n_2}{n_2 - 2} \quad (n_2 > 2) \mathrm{Var}(X) = \frac{2 n_2^2 (n_1 + n_2 - 2)}{n_1 (n_2 - 2)^2 (n_2 - 4)} \quad (n_2 > 4)

Usage

mf(df1, df2)

Arguments

df1

Numerator degrees of freedom

df2

Denominator degrees of freedom

Value

List with mean and variance

References

Hogg, R.V., McKean, J., and Craig, A.T. (2018). Introduction to Mathematical Statistics. Pearson.

See Also

df

Examples

mf(df1 = 5, df2 = 10)


AndriSignorell/DescTools documentation built on June 11, 2025, 10:41 p.m.