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BETA.INV()/BETAINV()

Syntax. BETA.INV(probability,alpha,beta,A,B)

Definition. This function returns the inverse of a beta distribution. If probability = BETADIST(x,...), then BETAINV(probability,...) = x. BETA.INV() is the inverse function of BETA.DIST().

The beta distribution can be used in project planning to model completion times based on the expected completion time and variance. The inverse of the function returns the value x (completion time) for a given probability of the beta cumulative frequency distribution.

Arguments

• probability (required). A probability associated with the beta distribution

• alpha (required). A parameter of the distribution (describes the shape)

• beta (required). A parameter of the distribution (describes the shape)

• A (optional) ...

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