If the economy booms, Meyer&Co. stock will have a return of 18.7 percent. If the economy goes into a recession, the stock will have a loss of 7.8 percent. The probability of a boom is 69 percent while the probability of a recession is 31 percent. What is the standard deviation of the returns on the stock?

If the economy booms, Meyer&Co. stock will have a return of 18.7 percent. If the economy goes into a recession, the stock will have a loss of 7.8 percent. The probability of a boom is 69 percent while the probability of a recession is 31 percent. What is the standard deviation of the returns on the stock? Multiple Choice O 12.26% O 9.47% 8.80% O O 7.48% 8.06% O