Milky and Choc has probability estimates for the four potential economic states for the coming year. The probability of a boom economy is 25%, the probability of a stable growth economy is 50%, the probability of a stagnant economy is 15% and the probability of a recession is 10%. Individual investments for coming year are as follows: Forecasted Returns for Each Economy Investment Boom Stable growth Stagnant Recession Stock 20% 14% 5% -12% Corporate bond 10% 8% 5% 4% Government bond 8% 6% 4% 2% b. Calculate the variance and standard deviation of the three (3) investments. c. If the estimates for both the probabilities of the econo (6 marks) (15 marks)