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1. The stocks on ABC Companyand XYZ Company have the following returns over the last fouryears. YearABC returnsXYZ returns1-0.20.0520.50.0930.3-0.1240.10.2a. Calculate theaverage return onABC. (1 mark)b. Calculate theaverage return onXYZ. (1 mark)c. Calculate thevariance and standard deviation on the ABC returns. (2.5 marks)d. Calculate thevariance and standard deviation on the XYZ returns. (2.5 marks)e. Using thecoefficient of variation (standard deviation/average return) tocompare the two stocks, which stock is preferable?