please solve using excel

LL eBook You have estimated the following probability distributions of expected future returns for Stocks X and Y: Stock X Stock Y Probability Return Probability Return 0.1 -12% 0.2 49 0.2 12 6 0.3 0.5 15 0.2 13 30 0.1 15 0.1 0.2 45 30 0.1 a. What is the expected rate of return for Stock X? Stock Y? Round your answers to one decimal place, 9% Stock X: Stock Y: 96 b. What is the standard deviation of expected returns for Stock X? For Stock Y? Round your answers to two decimal places Stock X: 96 Stock Y: 96 c. Which stock would you consider to be riskier? Selectis riskler because it has a select standard deviation or returns 74009341-100062