how do you do this problem?

Check Consider the following scenario analysis: Scenario Recession Normal economy Boom Probability 0.3 0.4 0.3 Rate of Return Stocks Bonds --8% 16% 17 9 3 22 Assume a portfolio with weights of 0.60 in stocks and 0.40 in bonds. a. What is the rate of return on the portfolio in each scenario? (Enter your answer as a percent rounded to 1 decimal place.) Recession Normal economy Boom Rate of Return % % % b. What are the expected rate of return and standard deviation of the portfolio? (Do not round Intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Expected return Standard deviation % %