Solve and show work for #13, please and thank you! Please write it out in a way that is easy to understand.

12. The following probability distibutions are given for returns of Stock X and Market Index M. (Use 12 and 13] this data to answer questions Market Condition Probability Stock Z Good Average Poor 0.4 0.4 02 10% - 40% 20% Calculate the expected return of Stock Z a, 10% b. 16% c. 18% 22% e, none of the given ones 13. The standard deviation of returns of Stock Z is: a) 18.3% b. 14.7% c. 12% d. 93% e, none of the given ones