WorksheetFunction.Beta_Dist method (Excel)

Returns the beta cumulative distribution function.

Syntax

expression.Beta_Dist (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6)

expression A variable that represents a WorksheetFunction object.

Parameters

Name	Required/Optional	Data type	Description
Arg1	Required	Double	The value between A and B at which to evaluate the function.
Arg2	Required	Double	The Alpha parameter of the distribution.
Arg3	Required	Double	The Beta parameter of the distribution.
Arg4	Optional	Variant	Cumulative - a logical value that determines the form of the function. If cumulative is True, BETA.DIST returns the cumulative distribution function; if False, it returns the probability density function.
Arg5	Optional	Variant	An optional lower bound to the interval of x.
Arg6	Optional	Variant	An optional upper bound to the interval of x.

Return value

Double

Remarks

The beta distribution is commonly used to study variation in the percentage of something across samples, such as the fraction of the day people spend watching television.

If any argument is nonnumeric, Beta_Dist returns the #VALUE! error value.

If alpha ≤ 0 or beta ≤ 0, Beta_Dist generates an error value.

If x < A, x > B, or A = B, Beta_Dist generates an error value.

If you omit values for A and B (lower and upper bound), Beta_Dist uses the standard cumulative beta distribution, so that A = 0 and B = 1.

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