Returns the inverse of the standard normal cumulative distribution. The distribution has a mean of zero and a standard deviation of one.
Syntax
NORMSINV(probability)
Probability is a probability corresponding to the normal distribution.
Remarks
 If probability is nonnumeric, NORMSINV returns the #VALUE! error value.
 If probability < 0 or if probability > 1, NORMSINV returns the #NUM! error value.
Given a value for probability, NORMSINV seeks that value z such that NORMSDIST(z) = probability. Thus, precision of NORMSINV depends on precision of NORMSDIST. NORMSINV uses an iterative search technique. If the search has not converged after 100 iterations, the function returns the #N/A error value.
Example
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How to copy an example
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Selecting an example from Help
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A 
B 
Formula 
Description (Result) 
=NORMSINV(0.908789) 
Inverse of the standard normal cumulative distribution, with a probability of 0.908789 (1.3333) 
