CHIINV function

Description

Returns the reverse of Chi-squared distribution.

CHIINV(P,df) returns the Chi-squared value corresponding with the one-tailed probability P (P-value) and the specified degrees of freedom df.

CHIINV is the inverse function of the CHIDIST function.

The argument P can be a real number or a matrix. When it is a matrix, the function returns a matrix with the same dimensions and with the CHIINV function applied to all elements.

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See also

• CHIDIST function
• Statistical test functions