AMC8 1993
AMC8 1993 · Q11
AMC8 1993 · Q11. It mainly tests Averages (mean), Casework.
Consider this histogram of the scores for 81 students taking a test: The median is in the interval labeled
考虑这81名学生考试成绩的直方图：中位数位于标记的区间
(A)
60
60
(B)
65
65
(C)
70
70
(D)
75
75
(E)
80
80
Answer
Correct choice: (C)
正确答案：（C）
Solution
Since 81 took the test, the median (middle) score is 41st. The test interval containing the 41st score is labeled 70.
共有 81 人参加测试，中位数（居中的成绩）是第 41 个。包含第 41 个成绩的区间标为 70。
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