Lucas purchases a share at the market price today. He has the following expectations on the total return of the share over the next year.

Probability	Share return
35%	34%
50%	22%
15%	-26%

The overall expected return for the share over the next year is 19%. Which of the following can be used to calculate the standard deviation of the share over the next year? (There may be more than one correct answer. You will lose marks by choosing a wrong answer. The minimum mark for the question is zero.)

Lucas purchases a share at the market price today. He has the following expectations on the total return of the share over the next year. Probability Share return 35% 34% 50% 22% 15% -26% The overall expected return for the share over the next year is 19%. Which of the following can be used to calculate the standard deviation of the share over the next year? (There may be more than one correct answer. You will lose marks by choosing a wrong answer. The minimum mark for the question is zero.) Select one or more: O a. 35% * (34% 19%)2 + 50% * (22% 19%)2 + 15%* (-26% 19%)2 O b. 35% * 34% + 50% * 22% + 15%* (-26%) 0 C. 35% * 34%2 + 50% * 22%2 + 15% * (-26%)2 d. V 35% * 34%2 + 50% * 22%2 + 15% *(-26%)2 19% O e. None of the options can be used to calculate the standard deviation of the bond over the next year