NORM.INV

NORM.INV(probability, mean, standard_dev)

Returns the inverse of the probability distribution function for a normal distribution.

probability	The probability associated with the distribution.
mean	The arithmetic mean of the distribution.
standard_dev	The standard deviation of the distribution.

REMARKS

* For an illustrated example refer to the page under Distributions
* The normal distribution is a continuous distribution
* You can use the NORM.DIST function to return the probability distribution function for a normal distribution.
* You can use the NORM.S.DIST function to return the probability distribution function for a standard normal distribution.
* You can use the NORM.S.INV function to return the inverse of the probability distribution function for a standard normal distribution.
* This function was added in Excel 2010 to replace the NORMINV function.
* For the Microsoft documentation refer to support.microsoft.com

	A
1	=NORM.INV(0.908789, 40, 1.5) = 42
2	=NORM.INV(0.87, 0, 1) = 1.126
3	=NORM.INV(NORM.DIST(0.87, 0, 1, TRUE), 0, 1) = 0.87
4	=NORM.INV(1, 0, 1) = #NUM!
5	=NORM.INV(-1, 40, 1.5) = #NUM!
6	=NORM.INV(2, 40, 1.5) = #NUM!
7	=NORM.INV(0.908789, "some text", 1.5) = #VALUE!