A mutual fund has the return frequency distribution shown in the following table.
Which of the following statements is correct?
A.正确答案AThe relative frequency of the interval “–1.0 to +2.0” is 20%
B.The relative frequency of the interval “+2.0 to +5.0” is 23%
C.The cumulative relative frequency of the interval “+5.0 to +8.0” is 91.7%
