The stock of XYZ sells for $60 a share. Its likely dividend payout and end-of-year price depend on the state of the economy by the end of the year as follows: Boom Normal economy Recession Dividend $2.00 1.80 0.90 Stock Price $70 63 54 a. Calculate the expected holding period return and standard deviation of the holding period return. All three scenarios are equally likely. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Expected return Standard deviation 6.50% 11.68% b. Calculate the expected return and standard deviation of a portfolio invested half in XYZ stock and half in Treasury bills. The return on bills is 5%. (Do not round intermediate calculations. Round your answers to 2 decimal places.) 96 Expected return Standard deviation