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F.DIST function: Description, Usage, Syntax, Examples and Explanation

What is F.DIST function in Excel?

F.DIST function is one of Statistical functions in Microsoft Excel that returns the F probability distribution. You can use this function to determine whether two data sets have different degrees of diversity. For example, you can examine the test scores of men and women entering high school, and determine if the variability in the females is different from that found in the males.

Syntax of F.DIST function

F.DIST(x,deg_freedom1,deg_freedom2,cumulative)

The F.DIST function syntax has the following arguments:

  • X     Required. The value at which to evaluate the function.
  • Deg_freedom1     Required. The numerator degrees of freedom.
  • Deg_freedom2     Required. The denominator degrees of freedom.
  • Cumulative      Required. A logical value that determines the form of the function. If cumulative is TRUE, F.DIST returns the cumulative distribution function; if FALSE, it returns the probability density function.

F.DIST formula explanation

  • If any argument is nonnumeric, F.DIST returns the #VALUE! error value.
  • If x is negative, F.DIST returns the #NUM! error value.
  • If deg_freedom1 or deg_freedom2 is not an integer, it is truncated.
  • If deg_freedom1 < 1, F.DIST returns the #NUM! error value.
  • If deg_freedom2 < 1, F.DIST returns the #NUM! error value.

Example of F.DIST 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
15.2069 Value at which to evaluate the function
6 Numerator degrees of freedom
4 Denominator degrees of freedom
Formula Description Result
=F.DIST(A2,A3,A4,TRUE) F probability using the cumulative distribution function (TRUE cumulative argument). 0.99
=F.DIST(A2,A3,A4,FALSE) F probability using the probability density function (FALSE cumulative argument). 0.0012238

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