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landrum airlines fly the Chicago-Pittsburgh route. The average number of passengers per aircraft is 160 people...

landrum airlines fly the Chicago-Pittsburgh route. The average number of passengers per aircraft is 160 people with a standard deviation of 20 people. The aircraft used for the route has 200 seats. What percentage of aircraft seats are sold out?

the airline must sell 150 seats on a flight. in what percentage of the company's flights will make a profit?

the airline will reduce the number of aircrafts at 20 percent of the flights. This will be done on aircraft with the lowest number of passengers. Under what number of passengers on a company flight will reduce the number of aircraft?

Math   Statistics-And-Probability   
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