问题如下:
The following table shows the annual returns for Fund Y.
The geometric mean for Fund Y is closest to:
选项:
A.14.9%.
B.15.6%.
C.19.5%.
解释:
A is correct.
The geometric mean return for Fund Y is found as follows: Fund Y = [(1 + 0.195) × (1 – 0.019) × (1 + 0.197) × (1 + 0.350) × (1 + 0.057)](1/5) – 1 = 14.9%.
老师好,请问为什么最后的1.057会有一个1/5?