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 13%, the probability of a stable growth economy is 16%, the probability of a stagnant economy is 51%, and the probability of a recession is 20%. Calculate the variance and the standard deviation stock? Investment Boom Forecasted Returns for Each Economy Stable Stagnant Growth 11% 6% 7% 6% 4% Stock Corporate bond Government bond 30% 10% 9% Recession - 15% 3% 2% 5% 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.)