What are the standard deviations of returns on Stocks X and Y respectively?______.
A.15% and 26%
B.20% and 4%
C.24% and 13%
D.28% and 8%

A.A.15%
B.20%
C.24%
D.28%

【参考答案】

C
解析：答案为C项。证券实际收益并不一定等于预期收益，某一证券的风险就是未来收益的变动可能和变动幅度，其变动幅......

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