NO.PZ2023091601000114
问题如下:
Consider two stocks, A and
B. Assume their annual returns are jointly normally distributed, the marginal
distribution of each stock has mean 2% and standard deviation 10%, and the
correlation is 0.9. What is the expected annual return of stock A if the annual
return of stock B is 3%?
选项:
A.
2%
B.
2.9%
C.
4.7%
D.
1.1%
解释:
老师好,1、从哪些表述能看出来,A相当于Y,B相当于X呀?
2、jointly normally distributed是想说A+B服从正态分布?
3、marginal distribution of each stock 又是想表达什么?