NO.PZ2018062016000047
问题如下:
Paul bought a fund and the return each year is shown below:
The fund's geometric mean will be:
选项:
A.
8.2%.
B.
1.48%.
C.
3.2%.
解释:
A is correct. [(1 + 0.045) × (1 – 0.01) × (1 + 0.201) × (1 + 0.16) × (1 + 0.03)](1/5) – 1 = 8.2%.
1. (1+4.5%)*(1-1%)*(1+20%)这一串可以直接在计算器按吗?但是好像括号按了没用?
2. 开五次根号的计算器按法是算出前五项乘积等于1.4845后按“yx”,“(”,"1/5,“)”,“=”,可以得到1.0822,然后减1即可得到答案0.0822.
请问按完yx后,按,。这个逗号在哪?没找着,是哪个按键?