Quantitative Problem: You are given the following probability distribution for CHC Enterprises: State of Economy. Probability Strong Normal Weak 0.2 0.45 0.35 Rate of return 21% 10% -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