NORM.S.DIST Returns the standard normal distribution (has a mean of zero and a standard deviation of one).
Syntax
NORM.S.DIST(Z, Cumulative)
Parameters
Z – The value for which you want the distribution.
Cumulative – Cumulative is a logical value that determines the form of the function. If cumulative is TRUE, NORM.S.DIST returns the cumulative distribution function; if FALSE, it returns the probability density function.
Return Value
The standard normal distribution (has a mean of zero and a standard deviation of one.
Reference Data
https://docs.microsoft.com/en-us/dax/dax-function-reference