Air Falcon is small commuter airline. Its past records point out that 80% of the people who make reservation will show up for the flight. The other 20% don't show up. Air Falcon decided to book 12 people for its flight today but the flight has just 10 seats.
a. Find out the probability that there are enough seats for all the passengers who show up. (consider probability that in 12 people, 10 or less show up.)
b. How many passengers are expected to show up?