A portfolio consists of 40 percent of Stock S and 60 percent of Stock T. Stock S will return 13 percent if the economy booms and 8 percent if it is normal. Stock T will return 6 percent in a boom and 10 percent in a normal economy. The probability of a boom is 50 percent. What is the portfolio variance?

After much consideration, you have chosen cancun over ft. lauderdale as your spring break destination this year. however, spring break is still months away, and you may reverse this decision. which of the following events would prompt you to reverse this decision? a. the marginal cost of going to cancun decreases. b. the marginal cost of going to ft. lauderdale decreases. c. the marginal benefit of going to cancun increases. d. the marginal benefit of going to ft. lauderdale decreases.