the economy booms, RTF, Inc., stock is expected to return 10 percent. the economy goes into a recessionary period, then RTF is expected to only return 5 percent. The probability of a boom while the probability of a recessioni 33 percent What is the variance of the returns on RTF, Inc. stock? 67 percent O 000553 O 000370 000188 O 0235 O 041750