Suppose an analyst collects the return on assets (ROA), in percentage terms, for 10 companies for each
Question:
Suppose an analyst collects the return on assets (ROA), in percentage terms, for 10 companies for each of two industries:
These data can be represented graphically as shown in Exhibit 13:
1. Calculate the average ROA for each industry.
2. Calculate the standard deviation of ROA for each industry.
3. Calculate the coefficient of variation (CV) of the ROA for each industry.
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1 The arithmetic mean ROA for both industries is th...View the full answer
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