Please show the answer and working for question 7. Answer for question 6 is C

Risk & Return: 4 Questions The following information applies to the next FIVE questions: Security X has the following payoff matrix: Economic Outlook Probability Return Recession Below Average Average Above Average Boom 0.08 0.20 0.28 0.26 0.18 -29% -3% 9% 21% 31% Question 6 Which of the following is the closest to the expected return of Security X? a. 10.41% b. 11.04% c. 10.64% d. 11.22% e. 5.80% Question 7 Which of the following is the closest to the volatility of Security X's returns? a. 17.02% b. 15.99% c. 23.88% d. 16.32% e. 23.26%