You have $20,000 to invest. If you invest $9,000 in Apple, $7,000 in Boeing and $4,000 in Comerica, what are your portfolio weighing's of each stock?

You have 40%, 40% and 20% of your portfolio invested in Adobe Systems, Aetna and AFLAC respectively. For the prior quarter, Abode Systems, Aetna, and AFLAC generated returns of -3.3%, 2.4% and 1.9% respectively. What was your portfolio return last quarter?

You have 40%, 40% and 20% of your portfolio invested in Adobe Systems, Aetna and AFLAC respectively. The betas for Abode Systems, Aetna, and AFLAC are 1.23, .51 and 1.06 respectively. What is your portfolio beta?

You own 10,000 shares of Bank of America. You believe that over the next year there are three possible economic scenarios; fast growth, slow growth and recession. You believe that the probabilities of each scenario are 15%, 75% and 10% respectively. You also believe that the Bank's stock will earn 15%, 8% and -9% for each scenario respectively. What is the expected return on the stock?

What is the standard deviation of the expected return from Problem 4?