Distribution X is: 15, 14, 11, 11, 9, and 6. Using the deviation-score method, find
(a) the variance and
(b) the standard deviation. Distribution Y is: 17, 16, 13, 13, 11, and 8. Using the deviation-score method, find
(c) the variance and
(d) the standard deviation. By both measures, X and Y have the same variability. (e) Why does the variance work out to be the same for both distributions? (f ) Why does the standard deviation work out to be the same for both?