天山 5 - 7
number of members number of hours
9 |
1 |
4 |
2 |
1 |
3 |
2 |
4 |
1 |
5 |
8 |
6 |
10 |
7 |
yesterday each of the 35 members of a certain task force spent some time working on project P. the table shows the number of hours and the number of members who spent tha tnumber of hours working on project P yesterday. what was the median number of hours that the members of the task force spent working on the project P yesterday?
answer E. 6
怎么算出来的呀
谢 |