### NORMSINV(probability)

Returns the x variable corresponding to less than a particular probability.

 probability The probability associated with the distribution.

#### Remarks

 * NORM.S.INV was added in Excel 2010 to replace this function.* Returns the z-value for given probabilities.* The standard normal distribution is a continuous distribution.* If "probability" < 0 then #NUM! is returned.* If "probability" > 1, then #NUM! is returned.* If "probability" is not numeric, then #VALUE! is returned.* This function uses an iterative technique for calculating the function.* This function iterates until the result is accurate to within ± 3x10^-7.* If this function does not converge after 100 iterations, then #N/A is returned.* mean 0, standard deviation 1* In Excel 2010 the accuracy of this function was improved.* For the Microsoft documentation refer to support.office.com

 A 1 =NORMSINV(0.5) = 0 2 =NORMSINV(0.841) = 1 3 =NORMSINV(0.159) = -1 4 =NORMSINV(1-0.159) = 1 5 =NORMSINV(0.977) = 2 6 =NORMSINV(0.023) = -2 7 =NORMSINV(1-0.023) = 2 8 =NORMSINV(-0.5) = #NUM! 9 =NORMSINV(0) = #NUM! 10 =NORMSINV(1) = #NUM! 11 =NORMSINV("some text") = #VALUE!