Variance and standard deviation (expected). Hull Consultants, a famous think tank in the Midwest, has provided probability estimates for the four potential economic states for the coming year. The probability of a boom economy is 10%, the probability of a stable growth economy is 16%, the probability of a stagnant economy is 49%, and the probability of a recession is 25%. Calculate the variance and the standard deviation stock? Investment Boom Forecasted Returns for Each Economy Stable Stagnant Growth 13% 3% 7% 5% 4% Stock Corporate bond Government bond 29% 10% 9% Recession - 15% 4% 3% 6% What is the variance of the stock investment? % (Round to five decimal places.) What is the standard deviation of the stock investment? 1 % (Round to two decimal places.)