F Distribution Variance Calculator

F Distribution Variance Calculator

For an F distribution with degrees of freedom \( d_1 \) and \( d_2 \), the variance is given by: $$ \operatorname{Var}(F) = \frac{2d_2^2 \, (d_1+d_2-2)}{d_1 \, (d_2-2)^2 \, (d_2-4)} \quad \text{for } d_2 > 4. $$

* Enter the degrees of freedom (\( d_1 > 0 \) and \( d_2 > 0 \)). Note: Variance is defined only when \( d_2 > 4 \).

Step 1: Enter Parameters

e.g., 5

e.g., 10 (must be > 4 for variance to be defined)

Formula: $$ \operatorname{Var}(F) = \frac{2d_2^2 \, (d_1+d_2-2)}{d_1 \, (d_2-2)^2 \, (d_2-4)} \quad (d_2 > 4). $$

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