The following table summarizes the mean returns and the standard deviations for several types of securities over the time period 1926-2002.

a. If standard deviation is used to measure the risk associated with each type of security, rank order the securities from highest to lowest risk.
b. If the coefficient of variation is used to measure risk, rank order the securities from highest to lowest risk.

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Standard Mean RetrnDeviation Investment A. Small Company 17 35 Common Stocks B. Large Company 23 Common Stocks C. Long-term Bonds D. Treasury Bills 08 04 035 031