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6. If the economy booms, Meyer&Co. stock will have a return of 23.8 percent. If the economy goes into a recession, the stock will have a loss of 12.3 percent. The probability of a boom is 71 percent while the probability of a recession is 29 percent. What is the standard deviation of the returns on the stock? ? 12.94% ? 16.38% ? 15.20% O 14.11% ? 9.48% ? 15.20%