问题如下:
The return projections have been made by Eunice. an analyst from an investment company, for each of the assets with the same probability of occurrence, which combination of two equally-weighted assets has lowest expected standard deviation?
选项:
A.Asset B and Asset C.
B.Asset A and Asset C.
C.Asset A and Asset B.
解释:
A is correct
Asset B and Asset C have the same expected return, and these two are perfectly negatively correlated. So the portfolio's standard deviation is the lowest.
请问可否再解释的详细一些,谢谢