Quantitative Problem: You are given the following probability distribution for CHC Enterprises State of Economy Probability Rate of return Strong Normal Weak 0.2 0.5 0.3 2196 9% -5% What is the stock's expected return? Round your answer to 2 decimal places. Do not round intermediate calculations. 7.20 | % What is the stock's standard deviation? Rou nd your answer to two decimal places. Do not round intermediate calculations. What is th e stock's coefficient of variation? Round your answer to two decimal places. Do not round intermediate calculations