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
这个题目,中位数只有可能是(150+200)/2=175和(200+250)/2=225.为什么答案给的是C,215怎么得的? | 
