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A group of ten students had a meeting to discuss the books that they read last summer. The median of the numbers of books read last summer by the first nine students that arrived at the meeting was 5. After the tenth student arrived at the meeting, the median of the numbers of books read last summer by the ten students was 4.5.
Quantity A
The number of books read last summer by the tenth student
Quantity B
3
D显示答案
· 相关考点
5.2.2 中位数
5.2.2 中位数
以上解析由 考满分老师提供。
