The market and Stock 3 have the following probability distributions: Probability. 0.3 15% 20% 0.4 0.3 10 19 6 13 a. Calculate the expected rates of return for the market and Stock J. Round your answers to one decimal place. Expected rate of return (Market): Expected rate of return (Stock 3): % % b. Calculate the standard deviations for the market and Stock J. Do not round intermediate calculations. Round your answers to two decimal places. Standard deviation (Market): Standard deviation (Stock )): % %