please I need help I am Waiting

eBook Expected Returns: Discrete Distribution The market and Stock J have the following probability distributions: A-Z Probability 0.3 15% 22% 0.4 10 4 0.3 20 10 a. Calculate the expected rate of return for the market. Round your answer to two decimal places. MITED 14.50 % Calculate the expected rate of return for Stock J. Round your answer to two decimal places. 11.2 % b. Calculate the standard deviation for the market. Do not round intermediate calculations. Round your answer to two decimal places % a Calculate the standard deviation for Stock J. Do not round intermediate calculations. Round your answer to two decimal places. %