A distribution has a standard deviation of 0=4. Find the z-score for each of the following locations in the distribution.
a. Above the mean by 4 points
b. Above the mean by 12 points
c. Below the mean by 2 points
d. Below the mean by 8 points
Z-score distribution with a standard deviation of 4.0 is calculated. How far below of above the mean is determined.