The BETADIST function returns the cumulative beta distribution probability value. All arguments are number values.
BETADIST(x-value, alpha, beta, x-lower, x-upper)
x-value: The x value at which you want to evaluate the function. x-value must be in the range 0 to 1.
alpha: One of the shape parameters of the distribution. alpha must be greater than 0.
beta: One of the shape parameters of the distribution. beta must be greater than 0.
x-lower: An optional lower limit or bound for the specified x value or probability. x-lower must be less than or equal to x-value. If x-lower is omitted, 0 is used.
x-upper: An optional upper limit or bound for the specified x value or probability. x-upper must be greater than or equal to x-value. If x-upper is omitted, 1 is used.
Examples |
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=BETADIST(0.5, 1, 2, 0.3, 2) returns 0.221453287197232. =BETADIST(1, 1, 2, 0, 1) returns 1. =BETADIST(0.1, 2, 2, 0, 2) returns 0.00725. |