a. Use a spreadsheet (or a calculator with a linear regression function) to determine Stock X's beta coefficient. Do not round intermediate calculations. Round your answer to two decimal places: b. Determine the arithmetic average rates of return for Stock X and the Nyse over the period given. Calculate the standard deviations of returns for both Stock X and the NYSE. Do not round intermediate calculations. Round your answers to two decimal places. past values). Also assume that Stock X is in equilibrium - that is, it plots on the Security Market Line. What is the riski.free rate? Do not round intermediate calculatiens Round your answer to two decimal places. d. Plot the Security Market Une. Choose the correct graph. The cocrect greph is e. Suppose you bold a large, well-diversified portfolio and are considering adding to that portfolio either 5 tock X or another stock, 5 tock y, which has the same beta as 5 toc In theory, you should