The test scores of the students in four classes are

Last updated: 7/18/2022

The test scores of the students in four classes are summarized below. Answer the questions about them. Class A: The mean score is 115 and the range of scores is 34. Class B: The mean score is 122 and the range of scores is 33. Class C: The mean score is 119 and the range of scores is 28. Class D: The mean score is 120 and the range of scores is 36. (a) Based on the information above, which class's scores have the most variability? Class A Class B Class C Class D (b) Based on the information above, which class has the lowest scores on average? Class A Class B Class C Class D X S ?