Mean and Variance of the F Distribution

Formula: \(\mu = \frac{df[2]}{df[2] - 2} \quad (df[2] > 2)\) \(\mathrm{Var}(X) = \frac{2 df[2]^2 (df[1] + df[2] - 2)}{df[1] (df[2] - 2)^2 (df[2] - 4)} \quad (df[2] > 4)\)

mf(df1, df2)

Arguments

df1

Numerator degrees of freedom

df2

Denominator degrees of freedom

Value

List with mean and variance

See also

df

Examples

mf(df1 = 5, df2 = 10)
#> $mean
#> [1] 1.25
#> 
#> $variance
#> [1] 1.35
#>