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A town library held a reading drive, in which 20 elementary school students were asked to record the number of books they read over the summer. Only whole numbers of books were recorded. The table above shows the results of the reading drive. The average (arithmetic mean) number of books read by the students was 2 books per student.
Which of the following statements individually provide(s) sufficient additional information to conclude that only one student read only 5 books?
Indicate all such statements.
A,B显示答案
· 相关考点
1.1.2 凑整
以上解析由 考满分老师提供。