gwd-3-33

lingdang1988

Q33:

150, 200, 250, n

Which of the following could be the median of the 4 integers listed above? I. 175 II. 215 III. 235 A. I only B. II only C. I and II only D. II and III only E. I, II, and III I chosed E but it's the wrong answer...who can help? Thanks a lot!

equilibrium

这题我也选错D了，我是应为把median 当成mean,所以错了，不知妹妹是不是也是因为粗心？

235 在200和250之间，则N应该在200与250之间，N与200的平均数为235，这样N为270，超出250 ，矛盾，所以C

lolo5595

Try the option one by one. Taking the option 3 (235) to N, the order will be 150,200,235,250. Therefore the median will be half of sum (200+235), which is not equal to 235. Then option 3 is not right.