F

**Syntax:** **F( M, N, X)**

*M, N* = degrees of freedom

*X* = upper bound

**F** returns the integral of Snedecor's F-distribution with
*M* and *N* degrees of freedom from minus infinity to *X*.
The function is given by:

**Examples:**

**F**(14, 35, 99) = 1

**F**(D3, W2, Y8) = Error - **F**, degrees of freedom must be
, where D3 = .5, W2 = 0, and Y8 = .99

**F**(B1, B2, B3) = 0.77459667, where B1 = 1, B2 = 2, and B3 = 3

**Excel function:** *N/A*

Grey Trout Software

02 March 2003