2.38 Baggage fees:An airline charges the following baggage fees: $20 for the first bag and $30 for the second. Suppose 48% of passengers have no checked luggage, 26% have only one piece of checked luggage and 26% have two pieces. We suppose a negligible portion of people check more than two bags.

A)The average baggage-related revenue per passenger is: $

b) The standard deviation of baggage-related revenue is: $

c) About how much revenue should the airline expect for a flight of 120 passengers? $