Assume that an economy can have four states: Severe recession, Mild recession, Normal growth, Boom. Probability of each scenario, stock and bond annual returns in that scenario are provided below. Let's also assume that you are creating a portfolio with 65% stocks and 35% bonds. Economy State Severe recession Probability 0.20 Stock Return (%) Bond Return (%) -37 -9 Mild recession 0.30 -11 15 Normal growth 0.40 14 8 Boom 0.10 30 -5 How much is the annual standard deviation of Stock returns? Enter your answer in the following format: 0.1234 Hint: Answer is between 0.1938 and 0.2373