PROBBETA Function

Returns the probability from a beta distribution.

Category: Probability
See: CDF Function, PDF Function

Syntax

PROBBETA(x,a,b)

Required Arguments

x

is a numeric random variable.

Range 0 ≤ x ≤ 1

a

is a numeric shape parameter.

Range a > 0

b

is a numeric shape parameter.

Range b > 0

Details

The PROBBETA function returns the probability that an observation from a beta distribution, with shape parameters a and b, is less than or equal to x.

Example

The following SAS statement produces this result.
SAS Statement
Result
x=probbeta(.2,3,4);
0.09888