Experience shows that a ski lodge will be full (162 guests) if there is a heavy snowfall in December, while only partially full (80 guests) with a light snowfall. What is the expected number of guests...

Experience shows that a ski lodge will be full (162 guests) if there is a heavy snowfall in December, while only partially full (80 guests) with a light snowfall. What is the expected number of guests if the probability for a heavy snowfall is 0.40? Assume that heavy snowfall and light snowfall are the only two possibilities.