(Portfolio expected rate of return) Barry Swifter is 60 years of age and ocnsidering retirement. Barrys retirement portfolio currently is valuod at $750,000 and is allocated in Troasury bills, an S8P 500 index fund, and an emerging market fund as follows: a. Based on the current portfolio composition and the expected rates of rotum given abovo, what in the expected rate of retum for Barry's portfolio? b. Barry is considering a reallocation of his investments to include more Treasury bills and loss exposure to omorging markots. If Barry moves all of his money from the emorging market fund and puts it in Treasury bills, what will be the oxpected rate of return on the resulting portilio? a. Based on the current portfolio composition and the given expected ratos of rotum, the expected rate of retum for Bary's portolio is 4. (Round to two decimal placen.)