Please explain

EXPECTED RETURN Demand for the Company's Products Weak Below average Average Above average Strong Probability of This Demand Occurring 0.1 0.4 0.3 1.1 0.1 1.0 Rate of Return If This Demand Occurs (2496) (ui) 13 38 72 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