Question 4 1 pts You have been given this probability distribution for the holding-period return for a stock. The calculated expected return for the stock is 0.128. What is the expected standard deviation for the stock return? Round your answer to 4 decimal places. For example, if your answer is 3.205%, then please write down 0.0321. State of economy Probability return Boom 40% 28% Normal 35% 11% Recession 25% -9%