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 -8 Average 0.4 17 Above average 0.2 40 Strong 0.1 70 1.0 Calculate the stocks expected return and standard deviation. Do not round intermediate calculations. Round your answers to two decimal places. Expected return: % Standard deviation: %