May 9, 2021

# How to use CHISQ.INV Function in Excel

The CHISQ.INV function 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.

Syntax:= CHISQ.INV(probability,deg_freedom)

The CHISQ.INV function syntax has the following arguments:

1. Probability (required argument) – This is the probability associated with the chi-squared distribution.
2. Deg_freedom (required argument) – This is the number of degrees of freedom. It must be an integer between 1 and 1010.

Example: Let’s look at some Excel CHISQ.INV function examples and explore how to use the CHISQ.INV function as a worksheet function in Microsoft Excel:

Syntax:  =CHISQ.INV(B1,B2)

Result: 3.218875825

Based on the Excel spreadsheet above, the following CHISQ.INV examples would return:

Syntax: =CHISQ.INV(C1,C2)
Result: 1.832581464

Syntax: =CHISQ.INV(D1,D2)
Result: 0.713349888

Syntax: =CHISQ.INV(E1,E2)
Result: 1.323303697

Note:

• 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 truncated.
• If deg_freedom < 1 or deg_freedom > 10^10, CHISQ.INV returns the #NUM! error value.

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