Documentation/How Tos/Calc: BETAINV function

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Calculates the inverse of the BETADIST function.


BETAINV(p; α; β; a; b)

The beta distribution is a family of continuous probability distributions, defined for an interval a to b, where α and β are parameters controlling the shape of the distribution.
BETAINV returns the value n, lying between a and b, such that BETADIST(n; α; β; a; b) is p.
a and b are optional parameters which default (if omitted) to 0 and 1.


BETAINV(0.96; 3; 4)

returns approximately 0.75.


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