Please dont use excel. Explain every answer

Use the following scenario analysis for stocks X and Y to answer CFA Questions 7 through 9 Bear Market 0.2 -20% -15% Normal Market Bull Market Probability Stock X Stock Y 0.3 50% 10% 0.5 18% 20% 7. What are the expected returns for stocks X and Y? (LO 5-2) 8. What are the standard deviations of returns on stocks X and Y? (LO 5-2) 9. 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? (LO 5-3) 10. Probabilities for three states of the economy and probabilities for the returns on a par- ticular stock in each state are shown in the table below