题目内容
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List S: -25, -10 , 0, 10, 25
The numbers in which of the following lists have an average (arithmetic mean) that is equal to the average of the numbers in list S ?
Indicate all such lists.
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A−10, −5, 0, 5, 10
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B−20, −10, 0, 10, 20
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C−25, −20, 0, 10, 25
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D −25, −5, 0, 5, 25
A,B,D显示答案
