# Documentation/Calc Functions/F.INV

F.INV

## Category:

Statistical Analysis

## Summary:

Returns the inverse of the cumulative F distribution. The F distribution is used for F tests in order to set the relation between two differing data sets.

## Syntax:

F.INV(Number; degreesFreedom1; degreesFreedom2)

## Returns:

Returns a non-negative real number which is the inverse of the cumulative distribution function for the F distribution.

## Arguments:

Number is a real number in the range [0,1] or a reference to the cell containing that number which is the probability value for which the inverse F distribution is to be calculated.

degreesFreedom1 is a real number or a reference to the cell containing that number which is the degrees of freedom in the numerator in the F distribution.

degreesFreedom2 is a real number or a reference to the cell containing that number which is the degrees of freedom in the denominator in the F distribution.

• If Number is greater than 1 or less than 0 or degreeFreedom1/degreeFreedom2 is less than 1, then the function returns an error value.
• If degreeFreedom1 or degreeFreedom2 is a non-integer value then the function uses its floor value, i.e. truncates it to an integer.

If F.DIST(x;degreesfreedom1;degreesfreedom2;TRUE()) = p, then F.INV(p;degreesfreedom1;degreesfreedom2) =x.

## Examples:

Formula Description Returns
=F.INV(0.5;5;10) The function calculates the inverse of the cumulative F distribution. 0.931933160851048
=F.INV(0.75;4;7) The function calculates the inverse of the cumulative F distribution. This can alternatively be considered as =F.DIST(1.71573803737036;4;7) gives 0.75. 1.71573803737036

F.DIST.RT

F.DIST

F.TEST

FDIST

FINV

F.INV.RT

FTEST

None

F.INV