### Standardizing Sets

Standardizing a set of observations means substracting the mean from each observation and dividing it by the standard deviation.

The mean is:

The standard deviation is:

The standarized values of each observation are then:

As an exercise, substitute Ybar and sd into the above equation.

Primary Author: Nicholas M. Short, Sr. email: nmshort@ptd.net
Dr. Jon W. Robinson (robinson@ltpmail.gsfc.nasa.gov)