GWD13-19

wanders

Yesterday each of the 35 members of a certain task force spent some time working on project P. The graph shows the number of hours and the number of members who spent that number of hours working on project P yesterday. What was the median number of hours that the members of the task force spent working on project P yesterday?

A. 2

B. 3

C. 4

D. 5

E. 6

为什么答案是E呢？

我觉得应该是A呀

sammen

没图，不知道，做这个题目，先排序，在求中位数。

robert

图的对应如下:

9 4 1 2 1 8 10 (numbers)

1 2 3 4 5 6 7 (hours)

wanders

偶明白了。谢谢！