NO.PZ2018062016000041
问题如下:
Peter invests a fund and the return of each year is as follows:
Between 1.03% ≤ x <4.77%,the cumulative relative frequency will be:
选项:
A.0.083.
B.1.
C.0.833.
解释:
C is correct.
按照题干给的区间得出BIN
然后分段求每段frequence
然后再求cumilater
耗费时间有些长 有应对选择题的简易方式吗