AMC 8 2019 Problem 10
AMC8 2019 年第 10 题
统计与数据图表★★☆☆☆
The diagram shows the number of students at soccer practice each weekday during last week. After computing the mean and median values, Coach discovers that there were actually 21 participants on Wednesday. Which of the following statements describes the change in the mean and median after the correction is made?
下面这张图展示了上周的每个工作日某个足球训练场的学生数。在计算完平均值和中位数之后，教练发现周三实际有 21 个参加者。那么当纠正了这个错误后，下面对于平均数和中位数的改变的论断中，哪个是正确的？
- A.The mean increases by 1 and the median does not change
- B.The mean increases by 1 and the median increases by 1
- C.The mean increases by 1 and the median increases by 5
- D.The mean increases by 5 and the median increases by 1
- E.The mean increases by 5 and the median increases by 5
正确答案 · Correct Answer
B
解析 · Solution
解析整理中
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