HardMath· Problem-Solving and Data Analysis· One-variable data: Distributions and measures of center and spread· MCQ
The mean score of 8 players in a basketball game was 14.5 points. If the highest individual score is removed, the mean score of the remaining 7 players becomes 12 points. What was the highest score?
A
20
B
24
C
32
D
36
Correct answer: C
Explanation
Choice C is correct. If the mean score of 8 players is 14.5, then the total of all 8 scores is . If the mean of 7 scores is 12, then the total of all 7 scores is . Since the set of 7 scores was made by removing the highest score of the set of 8 scores, then the difference between the total of all 8 scores and the total of all 7 scores is equal to the removed score: .
Choice A is incorrect because if 20 is removed from the group of 8 scores, then the mean score of the remaining 7 players is is approximately 13.71, not 12. Choice B is incorrect because if 24 is removed from the group of 8 scores, then the mean score of the remaining 7 players is is approximately 13.14, not 12. Choice D is incorrect because if 36 is removed from the group of 8 scores, then the mean score of the remaining 7 players is or approximately 11.43, not 12.
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id cb_question_bank:52ce32cf-9a25-42ed-9479-44aa74ffaa40 · question 1e8ccffd · IBN 00566-DC
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