CHISQ.INV.RT function: Description, Usage, Syntax, Examples and Explanation

Syntax of CHISQ.INV.RT function

CHISQ.INV.RT(probability,deg_freedom)

The CHISQ.INV.RT 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.RT formula explanation

• If either argument is nonnumeric, CHISQ.INV.RT returns the #VALUE! error value.
• If probability < 0 or probability > 1, CHISQ.INV.RT returns the #NUM! error value.
• If deg_freedom is not an integer, it is truncated.
• If deg_freedom < 1, CHISQ.INV.RT returns the #NUM! error value.

Given a value for probability, CHISQ.INV.RT seeks that value x such that CHISQ.DIST.RT(x, deg_freedom) = probability. Thus, precision of CHISQ.INV.RT depends on precision of CHISQ.DIST.RT. CHISQ.INV.RT uses an iterative search technique. If the search has not converged after 64 iterations, the function returns the #N/A error value.

Example of CHISQ.INV.RT 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.