kindly solve each part manually on paper! especially the last two

Scenario Probabili HPR of Stock X HPR of Stock Y Recessio 0.2 -20% -15% Normal 0.5 18% 20% Boom 0.8 50% 10% What are the expected returns for Stocks X and Y? What are expected risks associated with each stock? Assume that of your $10,000 portfolio, you invest $9,000 in Stock X and $1,000 in Stock Y. What is the expected return on your portfolio? What is the covariance between the two stocks? What is the risk of the portfolio