ONE QUESTION, ONE STEP
ZX-5C940BEF1BDistributions and measures of center and spread · 第 8 题
Distributions and measures of center and spread · 原库模块 1 · Q8 原库参考解析
Two different teams consisting of 10 members each ran in a race. Each member’s completion time of the race was recorded. The mean of the completion times for each team was calculated and is shown below.
Team A: 3.41 minutes
Team B: 3.79 minutes
Which of the following MUST be true?
I. Every member of team A completed the race in less time than any member of team B.
II. The median time it took the members of team B to complete the race is greater than the median time it took the members of team A to complete the race.
III. There is at least one member of team B who took more time to complete the race than some member of team A.
参考答案：
解题思路
容易忽略的一步
