If the economy booms, RTF, Incorporated, stock is expected to return 12 percent. If the economy goes into a recessionary period, then RTF is expected to only return 5 percent. The probability of a boom is 79 percent while the probability of a recession is 21 percent. What is the variance of the returns on RTF, Incorporated, stock? Multiple Choice .028512 .000642 .000813 .000471 .052650