NORMSINV (PQL  xl)
This function returns the inverse of the standard normal cumulative distribution. The distribution has a mean of zero and a standard deviation of one
 Library: PQL \ Spreadsheet \ Compatibility
 Compatibility: Any content (regardless of data source) in the Tabulate spreadsheet module
Syntax
NORMSINV(probability)
Function Arguments
Name  Description  Type  Optional 
probability  The argument is the probability for the normal distribution  Number 

Comments
This function is the same as the Microsoft Excel 'NORMSINV' function  using the same inputs, logic and outputs.