Part 1: Dallas Star Inc. 's stock has a 40% chance of producing a 5% return, and a 60% chance of producing a 25% return. What is the firm's expected rate of return? What is the firm's Standard Deviation? What is the firm's Coefficient of Variation?Please show each step

Part 2: Calculate the required rate of return for Dallas Star Inc., assuming that (1) the nominal risk-free rate is 7%, (2) expected market return is 10% and (3) the firm has a beta of 2. (Hint: You need to find out market risk premium first.) Please show each step.