NO.PZ2015120604000048
问题如下:
The table below shows the monthly stock returns of Ivy Corp.
According to the above table ,calculate the mean absolute deviation for Ivy Corp. returns?
选项:
A.15.0%.
B.7.0%.
C.25.0%.
解释:
B is correct
The mean of returns=(20%+4%-5%+12%+3%+12%)/6=7.7%.
The mean absolute deviation can be calculated as (
为什么计算器STAT出来结果是8.013877