For the sample of Saturday-morning cartoon violence counts described in given Exercise, determine the range, the mean absolute deviation, the standard deviation, and the variance.
Exercise
A social scientist for a children's advocacy organization has randomly selected 10 Saturday-morning television cartoon shows and carried out a content analysis in which he counts the number of incidents of verbal or physical violence in each. For the 10 cartoons examined, the counts were as follows: 27, 12, 16, 22, 15, 30, 14, 30, 11, and 21. Determine the mean and the median for these data. Is there a mode? If so, what is its value?