问题
单项选择题
An investor gathers the following information about two stocks:()
A.
B.Scenaril1
C.Scenario2
D.Scenario3
E.Probability
F.0.5
G.0.3
H.0.2
I.Rate of retum on:
J.
K.
L.
M.Security1
N.25%
O.10%
P.-25%
Q.Security2
R.1%
S.-5%
T.35%
答案
参考答案:B
解析:
E(R1)=0.5×25+0.3×10+0.2×(-25)=10.5%.
E(R2)=0.5×1+0.3×(-5)+0.2×35=6.0%.
E(Rp)=w1R1+w2R2=0.6×10.5+0.4×6.0=8.7%.