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

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What is CHISQ.DIST.RT function in Excel?

CHISQ.DIST.RT function is one of Statistical functions in Microsoft Excel that returns the right-tailed probability of the chi-squared distribution.
The χ2 distribution is associated with a χ2 test. Use the χ2 test to compare observed and expected values. For example, a genetic experiment might hypothesize that the next generation of plants will exhibit a certain set of colors. By comparing the observed results with the expected ones, you can decide whether your original hypothesis is valid.

Syntax of CHISQ.DIST.RT function

CHISQ.DIST.RT(x,deg_freedom)

The CHISQ.DIST.RT function syntax has the following arguments:

  • X     Required. The value at which you want to evaluate the distribution.
  • Deg_freedom     Required. The number of degrees of freedom.

CHISQ.DIST.RT formula explanation

  • If either argument is nonnumeric, CHISQ.DIST.RT function returns the #VALUE! error value.
  • If any argument is nonnumeric, CHISQ.DIST.RT function returns the #VALUE! error value.
  • If deg_freedom is not an integer, it is truncated.
  • If deg_freedom < 1 or deg_freedom > 10^10, CHISQ.DIST.RT returns the #NUM! error value.

Example of CHISQ.DIST.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.

Data Description
18.307 Value at which you want to evaluate the distribution
10 Degrees of freedom
Formula Description Result
=CHISQ.DIST.RT(A2,A3) One-tailed probability of the chi-squared distribution, for the arguments specified in A2 and A3. 0.0500006

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