Question

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?

Answer 1

The scores of Class A vary less than the scores of Class B.

Explanation:

Range of Class A = 94 − 78 = 16; Range of Class B = 88 − 68 = 20. → 16 < 20

Answer 2

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

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Explanation: