NO.PZ202106160300001201
问题如下:
The bin containing the median return is:
选项:
A.3% to 8% B.8% to 13% C.13% to 18%解释:
C is correct. Because 50 data points are in the histogram, the median return would be the mean of the 50/2 = 25th and (50 + 2)/2 = 26th positions. The sum of the return bin frequencies to the left of the 13% to 18% interval is 24. As a result, the 25th and 26th returns will fall in the 13% to 18% interval.
中位数需要从大到小排序吗?