Question

(1 point) A certain airline has 170 seats available for a flight from YYC (Calgary International Airport) to LAX (Los Angeles International Airport). Because people with reservations do not show up for their flight 11% of the time, the airline always overbooks this flight. That is, there are more passengers that have tickets on the flight than there are seats.

Suppose the airline has 183 passengers booked for 170 seats. Assume one person showing up for the flight does not effect others who may, or may not, show up for this flight.

(a) How many people (with tickets) does the airline expect to show up for this flight? Provide the standard deviation as well. Enter your answers to two decimals.

Expected number of the number of people showing up for the flight ==

Standard deviation of the number of people who show up for the flight ==

(b) When the flight takes off from YYC, what is the probability that there will be 5 seats empty? Enter your answer to four decimals.

?(5??????????)=P(5seatsempty)=

(c) What is the chance that a passenger with a flight reservation will not make it to LAX due to overbooking? Use four decimals in your answer.

Answer 1