NO.PZ2021061603000020
问题如下：
The annual returns for three portfolios are shown in the following exhibit.
Portfolios P and R were created in Year 1, Portfolio Q in Year 2.
The median annual return from portfolio creation to Year 5 for:
选项：
A.Portfolio P is 4.5% B.Portfolio Q is 4.0 C.Portfolio R is higher than its arithmetic mean annual return解释：
C is correct. The median of Portfolio R is 3% higher than the mean for portfolio R(2.2%）.
老师您好，请问到第五年时，年回报率的中值就是表中第五年的值嘛？好有点儿不太清楚，请老师解惑，谢谢老师
The median annual return from portfolio creation to Year 5 for：
portfolio P =7%
portfolio Q=8%
portfolio R=3%
