NORM.INV
Definition
Returns the inverse of the normal cumulative distribution for the specified mean and standard deviation.
Sample Usage
Syntax
NORM.INV(probability,mean,standard_dev)
The NORM.INV function syntax has the following arguments:
Probability Required. A probability corresponding to the normal distribution.
Mean Required. The arithmetic mean of the distribution.
Standard_dev Required. The standard deviation of the distribution.
Remarks
If any argument is nonnumeric, NORM.INV returns the #VALUE! error value.
If probability <= 0 or if probability >= 1, NORM.INV returns the #NUM! error value.
If standard_dev ≤ 0, NORM.INV returns the #NUM! error value.
If mean = 0 and standard_dev = 1, NORM.INV uses the standard normal distribution (see NORMS.INV).
Given a value for probability, NORM.INV seeks that value x such that NORM.DIST(x, mean, standard_dev, TRUE) = probability. Thus, precision of NORM.INV depends on precision of NORM.DIST.