| Spread WPF Documentation > Formula Reference > Formula Functions > CHIINV |
This function calculates the inverse of the one-tailed probability of the chi-squared distribution.
CHIINV(prob,deg)
This function has these arguments:
| Argument | Description |
|---|---|
| prob | Probability of the chi-squared distribution |
| deg | Number of degrees of freedom; if not an integer, the number is truncated |
Accepts numeric data for both arguments. Returns numeric data.
CHIINV(B5,D7)
CHIINV(R5C2,R7C4)
CHIINV(0.75,4) gives the result 1.9225575262