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标题: gwd math 11-22 [打印本页]

作者: EagerBeaver 时间: 2007-5-14 07:01 标题: gwd math 11-22

问题问的是中间数是多少？是在问准确的一个数，为什麽答案是c?两个条

件和在一起也只不过可以证明答案是比4多的一个数，也并非一个准确的

一个数呀! 请指教。

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.

作者: iselibra 时间: 2007-5-14 14:06

25%的数〉=4  35%的数<=2  ，那么40%的数就=3喽~  median 就是3.

作者: EagerBeaver 时间: 2007-5-15 06:58

i see, thanks !@

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