CHIINV - script and chart function

CHIINV() returns the inverse of the one-tailed probability of the chi2 distribution.

Syntax:  

CHIINV(prob, degrees_freedom)

Return data type: number

Arguments:  

Argument Description
prob A probability associated with the chi2 distribution. It must be a number between 0 and 1.
degrees_freedom An integer stating the number of degrees of freedom.

This function is related to the CHIDIST function in the following way:
If prob = CHIDIST(value,df), then CHIINV(prob, df) = value

Limitations:  

All arguments must be numeric, else NULL will be returned.