Charlie McCarthy purchased a stock that is expected to earn 18 percent during a booming economy, 11percent during a normal economy, and -.10 percent during a recessionary economy. The probability of boom economy is 16 percent whiel the probablity of a normal economy is .79 percent. What is Charlie's expected return on the stock? Choose the closest answer Group of answer choices 12.40 percent 8.25 percent 11.07 percent 12.54 percent 13.50 percent