I need help with questions 2 and 3 please.

RISK AND RETURN Assume that you recently graduated with a major in finance. You just landed a job as a financial planner with Merrill Finch Inc., a large financial services corporation. Your first assign- ment is to invest $100,000 for a client. Because the funds are to be invested in a business at the end of 1 year, you have been instructed to plan for a 1-year holding period. Further, your boss has restricted you to the investment alternatives in the following table, shown with their probabilities and associated outcomes. (For now, disregard the items at the bottom of the data; you will fill in the blanks later.) Returns on Alternative Investments Estimated Rate of Return State of the Economy High Tech U.S. Rubber Market Portfolio Two-Stock Portfolio Collections T-Bills Probability 24.5% 3.5% (2.5%) 3.0% Recession 0.1 (29.5%) (9.5) (19.5%) (5.5) 7.5 0.2 10.5 Below average 3.0 (16.5) 0.5 5.8 0.4 3.0 12.5 Average Above average 22.5 38.5 0.2 3.0 27.5 (1.0) (5.0) (20.0) 1.2% 23.5 35.5 11.3 Boom 0.1 3.0 42.5 7.3% 8.0% 18.8 11.2 15.2 4.6 0.0 9.8 2.6 1.9 0.8 CV -0.16 0.54 Sharpe ratio -0.50 0.88 b Note: "The estimated returns of U.S. Rubber do not always move in the same direction as the overall economy. For example, when the economy is below average, consumers purchase fewer tires than they would if the economy was stronger. However, if the economy is in a flat-out recession, a large number of consumers who were planning to purchase a new car may choose to wait and instead purchase new tires for the car they currently own. Under these circumstances, we would expect U.S. Rubber's stock price to be higher if there is a recession than if the economy is just below average. Merrill Finch's economic forecasting staff has developed probability estimates for the state of the economy, and its security analysts developed a sophisticated computer program to estimate the rate of return on each alternative under each state of the economy. High Tech Inc. is an electronics firm, Collections Inc. collects past-due debts, and U.S. Rubber manufactures tires and various other rubber and plastics products. Merrill Finch also maintains a "market portfolio" that owns a market-weighted fraction of all publicly traded stocks; you can invest in that portfolio and thus obtain average stock market results. Given the situation described, answer the following questions: The expected rates of return and the beta coefficients of the alternatives supplied by an indepen- dent analyst are as follows: Risk (Beta) Return, Security High Tech Market 9.9% 1.31 8.0 1.00 U.S. Rubber 7.3 0.88 3.0 0.00 T-bills Collections 1.2 (0.50) 1. What is a beta coefficient, and how are betas used in risk analysis? 2. Do the expected returns appear to be related to each alternative's market risk? 3. Is it possible to choose among the alternatives on the basis of the information developed thus far? Use the data given at the start of the problem to construct a graph that shows how the T-bill's, High Tech's, and the market's beta coefficients are calculated. Then discuss what betas measure and how they are used in risk analysis