posted by Sharon .
A distribution has a standard deviation of _ _ 12. Find the z-score for each of the following locations in the distribution.
a. Above the mean by 3 points.
b. Above the mean by 12 points.
c. Below the mean by 24 points.
d. Below the mean by 18 points.
Z = (score-mean)/SD
a. (score-mean) = 3
Z = 3/12 = ?
Use similar process for the remaining problems.