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List T consists of 6 different numbers, and the average (arithmetic mean) of the numbers in T is less than the median of the numbers in T. The average of the 4 least numbers in T is 6, and the average of the 4 greatest numbers in T is 13.
Quantity A
The median of the 6 numbers in T
Quantity B
9.5
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5.2.11 用数字描述数据综合题
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以上解析由 考满分老师提供。
