For which of the following lists of number is the median equal to the average (a

游客2024-01-12 89

问题 For which of the following lists of number is the median equal to the average (arithmetic mean)?

选项 A、3,4,7
B、1,10,19
C、7,7,10,12
D、0,1,1,5
E、0,2,3,4

答案 B

解析下面哪一列数的中数(median)等于其(算术)平均值?
解：本题的正确答案为(B)。五个选项中只有(B)的中数是10，平均数也是10。

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