Economic state	Probability	T-Bill	Alta Indus.	Repo Men	American Foam	Market Port.(index)
Recession	0.1	8.00%	-22.0%	28.0%	10.0%	-13.0%
Below Average	0.2	8.00%	-2.0%	14.7%	-10.0%	1.0%
Average	0.4	8.00%	20.0%	0.0%	7.0%	15.0%
Above Average	0.2	8.00%	35.0%	-10.0%	45.0%	29.0%
Boom	0.1	8.00%	50.0%	-20.0%	30.0%	43.0

Barney Smith Investment Advisors recently issued estimates for the state of the economy and the rate of return on each state of the economy. Alta Industries, Inc. is an electronics firm; Repo Men Inc. collects past due debts; and American Foam manufactures mattresses and various other foam products. Barney Smith also maintains an "index fund" which owns a market-weighted fraction of all publicly traded stocks; you can invest in that fund and thus obtain average stock market results. Given the situation as described, answer the following questions.

a. Calculate the expected rate of return on each alternative.

b. Calculate the standard deviation of returns on each alternative.

c. Calculate the coefficient of variation on each alternative.

d. Calculate the beta on each alternative.

e. Do the SD, CV, and beta produce the same risk ranking? Why or why not?

f. Suppose you create a two-stock portfolio by investing $50,000 in Alta Industries and $50,000 in Repo Men. Calculate the expected return, standard deviation, coefficient of variation, and beta for this portfolio. How does the risk of this two-stock portfolio compare with the risk of the individual