高頓網(wǎng)校CMA責任小編在此為各位考生提供考試習題練習如下，你知道答案嗎？
　　Question：
　　The state of the economy has a strong effect on the expected returns for Techspace, Inc., as
　　shown below:
 
　　Given that the standard deviation (σ) of Techspace returns is 15.36% and the expected
　　rate of return is 8%, the coefficient of variation is
　　A. 1.92%
　　B. 1.23%
　　C. 1.0%
　　D. 2.36%
　　Answer（A）：
　　Answer (A) is correct. The coefficient of variation is useful when the rates of return and standard deviations of two investments differ. It measures the risk per unit of return.
　　Techspace’s is calculated as follows:
　　Coefficient of variation = 15.36% ÷ 8%
　　= 1.92%
　　Answer (B) is incorrect. This percentage results from multiplying, rather than dividing, the standard deviation and expected rate of return.
　　Answer (C) is incorrect. One is the upper limit of the value for the beta coefficient of a security.
　　Answer (D) is incorrect. This percentage is the total weighted squared variance.
　　小編寄語：意外和明天不知道哪個先來。沒有危機是*5的危機，滿足現(xiàn)狀是*5的陷阱。

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