# NORM.INV Function

The NORM.INV function is one of the statistical functions. It is used to return the inverse of the normal cumulative distribution for the specified mean and standard deviation.

The NORM.INV function syntax is:

NORM.INV(probability, mean, standard-dev)

where

probability is the probability corresponding to the normal distribution, any numeric value greater than 0, but less than 1.

mean is the arithmetic mean of the distribution, any numeric value.

standard-dev is the standard deviation of the distribution, a numeric value greater than 0.

The numeric values can be entered manually or included into the cells you make reference to.

To apply the NORM.INV function,

1. select the cell where you wish to display the result,
2. click the Insert function icon situated at the top toolbar,
   or right-click within a selected cell and select the Insert Function option from the menu,
   or click the icon situated at the formula bar,
3. select the Statistical function group from the list,
4. click the NORM.INV function,
5. enter the required arguments separating them by commas,
6. press the Enter button.

The result will be displayed in the selected cell.