# F.DIST

### Definition/Description of Formula:

Calculates the left-tailed F probability distribution (degree of diversity) for two data sets with given input x. Alternately called Fisher-Snedecor distribution or Snecdor's F distribution.

### Syntax:

`F.DIST(x, deg_num, deg_den, cumulative)`

• `x` - The input to the F probability distribution function. The value at which to evaluate the function. Must be a positive number.

• `deg_num` - The numerator degrees of freedom.
• `deg_den` - The denominator degrees of freedom.
• `cumulative` - Logical value that determines the form of the function.
• If `TRUE``F.DIST` returns the cumulative distribution function.
• If `FALSE``F.DIST` returns the probability density function.

### Remarks:

• Both `deg_num` and `deg_den` are truncated to an integer in the calculation if a non-integer is provided as an argument.
• Both `deg_num` and `deg_den` must be greater than `1` and may not exceed `10^10`.
• `x``deg_num`, and `deg_den` must be numeric.

`FDIST`: Calculates the right-tailed F probability distribution (degree of diversity) for two data sets with given input x. Alternately called Fisher-Snedecor distribution or Snedecor's F distribution.

`F.DIST.RT`: Calculates the right-tailed F probability distribution (degree of diversity) for two data sets with given input x. Alternately called Fisher-Snedecor distribution or Snedecor's F distribution.

`T.INV`: Calculates the negative inverse of the one-tailed TDIST function.

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