8-1 EXPECTED RETURN A stock's returns have the following distribution: Demand for the Company's Products Probability of this Demand Occurring Rate of Return if this Demand Occurs Weak 0.1 (30%) (14) 0.1 0.3 11 Below average Average Above average Strong 0.3 20 45 1.0 Assume the risk-free rate is 2%. Calculate the stock's expected return, standard deviation, coefficient of variation, and Sharpe ratio