betainc(A;B;X)
Returns the regularized incomplete beta function of the given values.
Syntax
betainc(A;B;X)Input
| Argument | Type | Description | 
|---|---|---|
| A | integer or decimal | Amust be greater than 0. | 
| B | integer or decimal | Bmust be greater than 0. | 
| X | integer or decimal | Xmust be between 0 and 1 inclusive. | 
Return Value
Returns a decimal value corresponding to the regularized incomplete beta function of
          A, B, and X:
            IX(A,
          B)
The regularized incomplete beta function can be used to evaluate the cumulative distribution function of a random variable from a binomial distribution.
If any argument is N/A, the result is N/A.
Sample Usage
| a | b | x | betainc(a;b;x) | 
|---|---|---|---|
| 1 | 3 | 0.4 | 0.2613333 | 
| 2 | 3 | 0.8 | 0.0810667 | 
| 9 | 1 | 0.4 | 2.9127111e-005 | 
| 9 | 1 | 0.85 | 0.0257352 | 
| NA | 3 | 0.8 | NA | 
