GWD 19-30

puccamummy

According to the chart shown, which of the following is closest to the median annual number of shipments of manufactured homes in the United States for the years from 1990 to 2000, inclusive?

A.     250,000

B.     280,000

C.     310,000

D.     325,000

E.      340,000

我为什么算出来的是D？

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[此贴子已经被作者于2005-11-13 18:50:02编辑过]

不知不觉

一共11个数据,从小到大数到六,刚过300,000,所以是C