WorksheetFunction.Norm_Dist Method (Excel)
Returns the normal distribution for the specified mean and standard deviation. This function has a wide range of applications in statistics, including hypothesis testing.
Version Information
Version Added: Excel 2010
Syntax
expression .Norm_Dist(Arg1, Arg2, Arg3, Arg4)
expression A variable that represents a WorksheetFunction object.
Parameters
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. |
Return Value
Double
Remarks
If mean or standard_dev is nonnumeric, NORM_DIST returns the #VALUE! error value.
If standard_dev ≤ 0, NORM_DIST returns the #NUM! error value.
If mean = 0, standard_dev = 1, and cumulative = TRUE, NORM_DIST returns the standard normal distribution, NORM_S_DIST.
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.