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.

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:

When cumulative = TRUE, the formula is the integral from negative infinity to x of the given formula.

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