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TT GWD-1-35 (我发的这几个都是先搜过了没有的)

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楼主
发表于 2006-7-27 17:19:00 | 只看该作者

TT GWD-1-35 (我发的这几个都是先搜过了没有的)

Q35:

What is the median number of employees assigned per project for the projects at Company Z?

(1)   25 percent of the projects at Company Z have 4 or more employees assigned to each project.

(2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.

                  

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

median是中间数,怎么可能由1,2 共同推出?应该都推不出吧

沙发
发表于 2006-7-27 17:27:00 | 只看该作者

因为median是位于50%那个位置。

而25 percent of the projects at Company Z have 4 or more employees assigned to each project.

和 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.

可以知道

0-35%           <=2

75%-100%    >=4

因此35%-75%之间都为3,所以median为3

板凳
 楼主| 发表于 2006-7-27 17:28:00 | 只看该作者

thanks!

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