Posted by Rok on Monday, January 30, 2012 at 9:53pm.
Suppose that your score on an exam has a positive zscore in comparison to your classmates. A. Is it possible that your score is below the mean score?

Stats  MathGuru, Tuesday, January 31, 2012 at 8:53pm
Positive zscores are above the mean; negative zscores are below the mean.