A. Given the following probable states of the economy and the expected return on a security in each state: State of economy Recession Probability Return 0.20 -1.5% Normal 0.55 6% Boom 0.25 8% i. What is the expected return on the security? (4 marks) ii. iii. What is the standard deviation on the security? Coefficient of variation (6 marks) (2 marks)