The head of the math department compared the scores of students in two classes on the chapter 2 test. he found that the mean score of both classes was the same. he also found that there was greater variability in the scores of ms. biren’s students than in the scores of mr. hayes’s students. which quality of the data sets would lead the department head to that conclusion? the median score in ms. biren’s class is greater than the median score in mr. hayes’s class. the median score in ms. biren’s class is less than the median score in mr. hayes’s class. the range of scores in ms. biren’s class is greater than the range of scores in mr. hayes’s class. the range of scores in ms. biren’s class is less than the range of scores in mr. hayes’s class.