PHI

The PHI function returns the value of the density function for a normal distribution with mean 0 and standard deviation 1, calculated with the formula .

Parts of a PHI function

PHI(x)

Parts	Description
x	The input to the standard normal distribution function.

Sample formula

PHI(0.25)

Notes

This is a special case of the NORMDIST function, where mean is 0, standard deviation is 1, and ‘cumulative’ is false.

Examples

A	B
1	Formula
2	=PHI(0.5)
3	=PHI(1)
4	=PHI(1.5)

Related functions

• STDEV: The STDEV function calculates the standard deviation based on a sample.
• NORMDIST: The NORMDIST function returns the value of the normal distribution function (or normal cumulative distribution function) for a specified value, mean, and standard deviation.