Rtf stock is expected to return 10. 6 percent if the economy booms and only 4. 2 percent if the economy goes into a recessionary period. The probability of a boom is 55 percent while the probability of a recession is 45 percent. What is the standard deviation of the returns on rtf stock?.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.