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A stock's returns have the following distribution: Demand for the Probability of This Company's Products Demand Occurring Rate of Return If This Demand Occurs Weak 0.1 (46%) Below average 0.1 (15) Average 0.3 13 Above average 0.4 34 Strong 0.1 62 1.0 a. Calculate the stock's expected return. Round your answer to two decimal places. % b. Calculate the stock's standard deviation. Do not round intermediate calculations. Round your answer to two decimal places % c. Calculate the stock's coefficient of variation, Round your answer to two decimal places.