A common practice of airline companies is to sell more tickets for a speflight than there are seats on the plane. It takes place that customers who purchase tickets don't always show up for the flight. Assume that for each person the chance of not showing at flight time is 1.5%.
For a specific flight with 300 seats, find out the number of tickets which can be sold by the airline company so that the probability of overbooking the flight is around 31%.