Q30:According to the chart shown, which of thefollowing is closest to the median annual number of shipments of manufacturedhomes in the United States for the years from 1990 to 2000, inclusive?
[attachimg]90776[/attachimg]A. 250,000 B. 280,000 C. 310,000 D. 325,000 E. 340,000 答案是B 求中位数的话,是不是应该把90年到00年进行从小到大的排序,但是排序后区中间的那个就是94年,明显是C选项。 谁能告诉我是怎么做的,不好意思,我实在太苯了。