The mean score for a math test taken by Class A is 84, with the scores ranging from 78 to 94. The mean score for the same math test taken by Class B is 76, with the scores ranging from 68 to 88. Which BEST compares the scores of the two classes?

Question

Responses
A The scores of Class A vary less than the scores of Class B.The scores of Class A vary less than the scores of Class B.
B The highest score for the test was in Class B.The highest score for the test was in Class B.
C On average, the scores of Class A are lower than Class B.On average, the scores of Class A are lower than Class B.
D The scores of Class B vary less than the scores of Class A.

Answer 1

C On average, the scores of Class A are higher than Class B.

Answer 2

BUT C says Class A is LOWER which is incorrect

However A is correct. 94 - 78 = 16 but 88 - 68 = 20

( That pesky "range" again )

Answer 3

I apologize, you are correct. Option A is the correct comparison. Thank you for catching that mistake.