A stock's returns have the following distribution: Probability of This Demand Occurring Rate of Return If This Demand Occurs (50%) Demand for the Company's Products Weak Below average Average Above average Strong 0.3 0.1 1.0 Assume the risk-free rate is 49. Calculate the stock's expected return, standard deviation, coefficient of variation, and Sharpe ratio. Do not round intermediate calculations. Round your answers to two decimal places. Stock's expected return: Standard deviation: Coefficient of variation: Sharpe ratio