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Problem App1-01 Your rate of return expectations for the common stock of Gray Cloud Company during the next year are: a. Compute the expected retum [E(R)] on this investment, the variance of this return (2), and its standard deviation (). Do not round intermediate calculations. Round your answers for expected return and standard deviation to two decimal places. Round your answer for variance of this return to four decimal places. a2 (3) o 8% b. Under what conditions can the standard deviation be used to measure the relative risk of two investments? Standard deviation can be used as a good measure of relative risk between two investments that have c. Under what conditions must the coefficient of variation be used to measure the relative risk of two investments? The coefficient of variation must be used to measure the relative variablity of two investments if there are