any calculator thank you!

Click here to read the eBook: Stand-Alone Risk EXPECTED RETURN A stock's returns have the following distribution: Demand for the Company's Products Weak Below average Average Above average Strong Probability of this Rate of Return If Demand Occurring This Demand Occurs 0.1 (42%) 0.1 (6) 0.4 16 0.3 34 0.1 73 1.0 a. Calculate the stock's expected return. Round your answer to two decimal places. 19.10 % b. Calculate the stock's standard deviation. Do not round intermediate calculations. Round your answer to two decimal places. % c. Calculate the stock's coefficient of variation. Round your answer to two decimal places