The stock of Business Adventures sells for $35 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 Normal economy 1.20 38 Recession Boom $1.20 $45 3.60 26 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 b. Calculate the expected return and standard deviation of a portfolio invested half in Business Adventures and half in Treasury bills The return on bills is 4% (Do not round intermediate calculations, Round your answers to 2 decimal places.) % Expected return Standard deviation