Returns the normal distribution for the specified mean and standard deviation. This function has a wide range of applications in statistics, including hypothesis testing.
expression . Norm_Dist( Arg1 , Arg2 , Arg3 , Arg4 )
expression A variable that represents a WorksheetFunction object.
| Name | Required/Optional | Data Type | Description |
|---|---|---|---|
| Arg1 | Required | Double | X - The value for which you want the distribution. |
| Arg2 | Required | Double | Mean - The arithmetic mean of the distribution. |
| Arg3 | Required | Double | Standard_dev - The standard deviation of the distribution. |
| Arg4 | Required | Boolean | Cumulative - A logical value that determines the form of the function. If cumulative is TRUE, NORM_DIST returns the cumulative distribution function; if FALSE, it returns the probability mass function. |
Double
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If mean or standard_dev is nonnumeric, NORM_DIST returns the #VALUE! error value.
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If standard_dev ? 0, NORM_DIST returns the #NUM! error value.
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If mean = 0, standard_dev = 1, and cumulative = TRUE, NORM_DIST returns the standard normal distribution, NORM_S_DIST.
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The equation for the normal density function (cumulative = FALSE) is:
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When cumulative = TRUE, the formula is the integral from negative infinity to x of the given formula.
