can someone please help?

f the economy booms, RTF, Inc. stock is expected to return 13 percent. If the economy goes into a recessionary period, then RTF is expected to only return 5 percent. The probability of a boom is 83 percent while the probability of a recession is 17 percent. What is the variance of the returns on RTF, Inc. stock? Multiple Choice .030051 .000596 000750 Multiple Choice .030051 000596 000750 .058200 000903