The test scores of the students in four classes are summarized below. Answer the questions about them.

Class A: The mean score is and the range of scores is .
Class B: The mean score is and the range of scores is .
Class C: The mean score is and the range of scores is .
Class D: The mean score is and the range of scores is .
(a) Based on the information above, which class has the highest scores on average?

Class A

Class B

Class C

Class D
(b) Based on the information above, which class's scores have the most variability?

Class A

Class B

Class C

Class D

1 answer

(a) To determine which class has the highest scores on average, we need to compare the mean scores of each class. The answer will depend on the provided mean scores for each class. Please provide the mean scores for each class in order to answer the question accurately.

(b) To determine which class's scores have the most variability, we need to compare the ranges of scores for each class. The answer will depend on the provided ranges of scores for each class. Please provide the ranges of scores for each class in order to answer the question accurately.