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NORM.S.DIST function: Description, Usage, Syntax, Examples and Explanation

What is NORM.S.DIST function in Excel?

NORM.S.DIST function is one of Statistical functions in Microsoft Excel that returns the standard normal distribution (has a mean of zero and a standard deviation of one).
Use this function in place of a table of standard normal curve areas.

Syntax of NORM.S.DIST function – Standard Normal Distribution


The NORM.S.DIST function syntax has the following arguments:

  • Z: The value for which you want the distribution.
  • Cumulative: Cumulative is a logical value that determines the form of the function. If cumulative is TRUE, NORMS.DIST returns the cumulative distribution function; if FALSE, it returns the probability mass function.

NORM.S.DIST formula explanation

  • If z is nonnumeric, NORM.S.DIST returns the #VALUE! error value.
  • The equation for the standard normal density function is:Equation

Example of NORM.S.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.

Formula Description Result
=NORM.S.DIST(1.333333,TRUE) Normal cumulative distribution function at 1.333333 0.908788726
=NORM.S.DIST(1.333333,FALSE) Normal probability distribution function at 1.333333 0.164010148

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