NDTAP -Select- Sharpe ra excess hat investment returns are above the risk-free rate- so investments with returns equal to the risk-free rate will have a ollows that over a given time period, investments with Select Sharpe ratios performed better, because they generated -Select- per unit of risk. The Sharpe ratio is calculated as: Sharpe ratio= (Return-Risk-free rate)/o Quantitative Problem: You are given the following probability distribution for CHC Enterprises: State of Economy Probability Bate of return 0.25 21% Strong Normal 0.55 10% Weak 0.20 -5% 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 dectmal places. % What is the stock's coefficient of variation? Do not round intermediate calculations: Round your triswer to two decimal places. O con Key lica of Ch. pt Check