Air-usa has a policy of booking as many as 21 persons on an airplane that can seat only 19. (past studies have revealed that only 88% of the booked passengers actually arrive for the flight.)find the probability that if air-usa books 21 persons, not enough seats will be available. prob =is this probability low enough so that overbooking is not a real concern for passengers if you define unusual as 5% or less? yes, it is low enough not to be a concernno, it is not low enough to not be a concernwhat about defining unusual as 10% or less? yes, it is low enough not to be a concernno, it is not low enough to not be a concern