Cooljas · 2024年05月02日

是怎么根据z的范围得出0.0896的啊？

1. FRM I
2. Quantitative

NO.PZ2023091601000038

问题如下：

Assume that a random variable follows a normal distribution with a mean of 80 and a standard deviation of 24. What percentage of this distribution is not between 32 and 116?

选项：

A.

4.56%

B.

8.96%

C.

13.36%

D.

18.15%

解释：