# Documentation/Calc Functions/NORM.S.DIST

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## Function name:

NORM.S.DIST

## Category:

Statistical Analysis

## Summary:

Returns the standard normal cumulative distribution function. The distribution has a mean of zero and a standard deviation of one.

## Syntax:

NORM.S.DIST(**Number**; **Cumulative**)

## Returns:

## Arguments:

**Number** is the value to which the standard normal cumulative distribution is calculated.

**Cumulative** 0 or FALSE calculates the probability density function. Any other value or TRUE calculates the cumulative distribution function.

## Additional details:

## Examples:

=NORM.S.DIST(1;0) returns 0.2419707245.

=NORM.S.DIST(1;1) returns 0.8413447461. The area below the standard normal distribution curve to the left of X value 1 is 84% of the total area.