Compute the standard deviation of the expected return given these three economic states, their probabilities, and the potential returns. Round all intermediate calculations to 5 decimal places of precision. Economic State Probability 25% 1-55%--IL Return |[ 25% 1196 -2% Fast Growth Slow Growth Recession Oa. 11.90% b. 11.35% c. 9.05% d. 8.19% /