A stock's return has 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% Below average 0.2 -7 Average 0.4 15 Above average 0.2 35 Strong 0.1 60 1.0 Calculate the stock's expected return. Round your answer to two decimal places. % Calculate the standard deviation. Round your answer to two decimal places. %