a raA raffle has a grand prize of a Alaskan cruise valued at $7000 with a second prize of a Las Vegas getaway valued at $800. If each ticket costs $4 and 10600 tickets are sold, what are the expected winnings far a ticket buyer

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d