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Jill has received 8 of her 12 evaluation scores. So far, Jill's average (arithmetic mean) is 3.75 out of a possible 5. If Jill needs an average of 4.0 points to get a promotion, which set of scores will allow Jill to receive her promotion?
Indicate all possible answers.
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A.3.0, 3.5, 4.75, 4.75
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B.3.5, 4.75, 4.75, 5.0
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C.3.25, 4.5, 4.75, 5.0
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D.3.75, 4.5, 4.75, 5.0
B,D显示答案
