CHISQ.INV function: Description, Usage, Syntax, Examples and Explanation
What is CHISQ.INV function in Excel?
Syntax of CHISQ.INV function
CHISQ.INV(probability,deg_freedom)
The CHISQ.INV function syntax has the following arguments:
- Probability Required. A probability associated with the chi-squared distribution.
- Deg_freedom Required. The number of degrees of freedom.
CHISQ.INV formula explanation
- 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.
Example of CHISQ.INV function
Steps to follow:
1. Open a new Excel worksheet.
2. Copy data in the following table below and paste it in cell A1
Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.
You can adjust the column widths to see all the data, if need be.
| 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 |