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Description: Returns the inverse of the cumulative beta probability distribution function for a specified beta distribution. That is, if probability = BETADIST(x,...), then BETAINV(probability,...) = x.
Syntax: BETAINV(Probability, Alpha, Beta)
Probability is a probability associated with the beta distribution.
Alpha is a parameter of the distribution.
Beta is a parameter the distribution.
Remarks:
All arguments must be numerical.
Alpha and Beta must be > 0.
Probability must be > 0 and < 1.
BETAINV uses an iterative search technique. If the search has not converged after 100 iterations, the function returns an error.
Example:
BETAINV(0.685470581, 5, 10) = 0.3867687477
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