Quantitative Problem: You are given the following probability distribution for CHC Enterprises: State of Economy Strong Normal Weak Probability 0.20 0.55 0.25 Rate of return 22% 9% -6% What is the stock's expected return? Do not round intermediate calculations. Round your answer to two decimal places.. % What is the stock's standard deviation? Do not round intermediate calculations. Round your answer to two decimal places. % What is the stock's coefficient of variation? Do not round intermediate calculations. Round your answer to two decimal places.