Suppose that the correlation of the return of a portfolio with the return of its benchmark is 0.8, the volatility of the return of the portfolio is 5%, and the volatility of the return of the benchmark is 4%. What is the beta of the portfolio?
A
1.00
B
0.80
C
0.64
D
-1.00
平均正确率:70.9%
正确答案:A你的答案:C
老师题目中的correlation是系数,还是cov(p,b)?