Calculates the inverse of the right-tailed chi squared distribution.

**Sample Usage**

CHISQ.INV.RT(.05,10)

CHISQ.INV.RT(C5:C6)

**Syntax**

CHISQ.INV.RT(probability, degrees_freedom)

- probability - The probability associated with the right-tailed chi-squared distribution.
- degrees_freedom - An integer indicating the degrees of freedom of the distribution.

**Examples**

CHISQ.INV.RT(.05,10) returns a value of 18.307, the inverse of the one-tailed probability of the chi-squared distribution.

**Notes**

- degrees_freedom is truncated to an integer if a non-integer is provided.
- degrees_freedom must be at least
`1`

. - All arguments must be numeric.