NORMDIST

**Syntax:** **NORMDIST( X, M, S, C)**

*X* = a numeric value

*M* = the mean of the normal distribution

*S* = the standard deviation of the normal distribution

*C* = a boolean value (1 = ``cumulative'')

The cumulative normal distribution from minus infinity to *X*
for mean *M* and standard deviation *S.* If *C* is True
(non-zero), the cumulative distribution function *F(X)* is returned;
otherwise, the probability mass function *f(X)* is returned.
The standard deviation *S* must be greater than zero.

The mathematical formulation is given by:

For *C* = 0:

For *C* = 1:

**Examples:**

**NORMDIST**(1.41, 1, 0, 0) = 0.1476385

**NORMDIST**(1.41, 1, 0, 1) = 0.92073016

**NORMDIST**(1.41, 1, 0, 0) = Error

**Excel function:** NORMDIST

Grey Trout Software

02 March 2003