The mean return on equity (ROE)for a group of firms in an industry is 15 percent with a variance of 9 percent.The coefficient of variation of the industry's ROE is:
A)0.2
B)0.6
C)1.7
D)5.0

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The Answer of The mean return on equity (ROE)for a group of firms in an industry is 15 percent with a variance of 9 percent.The coefficient of variation of the industry's ROE is:
A)0.2
B)0.6
C)1.7
D)5.0

The Mean Return on Equity (ROE)for a Group of Firms