Draw a clearly labeled diagram and then solve each problem.

an Airlines sell more tickets for a flight than the number of available seats (overbooking). They do this because they know from past experience that only 90% of ticketed passengers actually show up for the flight.

(a) A plane has 9 seats. If the airline sells 11 tickets for a flight, what is the probability that the flight will be overbooked (the number of passengers who show up is greater than the number of available seats)?

1- A plane has 225 seats. If the airline sells 250 tickets for a flight, what is the probability that the flight will be overbooked (the number of passengers who show up is greater than the number of available seats)? Use the normal approximation for this please.