if excel can be avoided to solve this problem tht would be great please

Please show all work 1. Expected Return, Variance and Standard Deviation of Individual Assets (8 points) Consider the following information on retums and probabilities: State Probability X Y Boom .25 15% 10% Normal .60 10% 9% Recession .15 5% 10% What are the expected return and standard deviation for Stock X and Stock Y? (see handout on Expected Returns, Variance and Standard Deviation for formulas)