Quantitative Problem: You are given the following probability distribution for CHC Enterprises: State of Economy Strong Normal Weak Probability 0.25 0.55 0.20 Rate of return 20% 8% -6% What is the stock's expected return? Do not round intermediate calculations. Round your answer to two decimal places.. % Show All Feedback What is the stock's standard deviation? Do not round intermediate calculations. Round your answer to two decimal places. Show All Feedback What is the stock's coefficient of variation? Do not round intermediate calculations. Round your answer to two decimal places.