| Spread WinRT Documentation > Formula Reference > Formula Functions > NORMINV | 
This function returns the inverse of the normal cumulative distribution for the given mean and standard deviation.
NORMINV(prob,mean,stdev)
This function has these arguments:
| Argument | Description | 
|---|---|
| prob | Probability of the normal distribution | 
| mean | Arithmetic mean of the distribution | 
| stdestdev | Standard deviation of the distribution Must be greater than zero. | 
Accepts numeric data for all arguments. Returns numeric data.
NORMINV(B3,C12,D14)
NORMINV(R3C2,R12C3,R14C4)
NORMINV(0.978,32,0.252) gives the result 32.50755174