# CHISQ.INV

Returns the inverse of the left-tailed probability of the chi-squared distribution.

The chi-squared distribution is commonly used to study variation in the percentage of something across samples, such as the fraction of the day people spend watching television.

## Syntax

CHISQ.INV(probability,deg_freedom)


### Parameters

Term Definition
Probability A probability associated with the chi-squared distribution.
Deg_freedom The number of degrees of freedom.

## Return value

Returns the inverse of the left-tailed probability of the chi-squared distribution.

## Remarks

• If argument is nonnumeric, CHISQ.INV returns the #VALUE! error value.

• If probability < 0 or probability > 1, CHISQ.INV returns the #NUM! error value.

• If deg_freedom is not an integer, it is rounded.

• If deg_freedom < 0 or deg_freedom > 10^10, CHISQ.INV returns the #NUM! error value.

• This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.

## Example

Formula Description Result
= CHISQ.INV(0.93,1) Inverse of the left-tailed probability of the chi-squared distribution for 0.93, using 1 degree of freedom. 5.318520074
= CHISQ.INV(0.6,2) Inverse of the left-tailed probability of the chi-squared distribution for 0.6, using 2 degrees of freedom. 1.832581464