The stock of XYZ sells for $75 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:

	Dividend	Stock Price
Boom	$2.50	$83
Normal economy	1.30	77
Recession	0.75	65

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.)

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.)