chegg granite state airlines serves the route between new york and portsmouth, nh, with a single-flight- daily 100-seat aircraft. the one-way fare for discount tickets is $100, and the one-way fare for full- fare tickets is $400. discount tickets can be booked up until two weeks in advance, and all discount passengers book before all full-fare passengers. over a long history of observation, the airline estimates that full-fare demand is normally distributed, with a mean of 56 passengers and a standard deviation of 23, while discount-fare demand is normally distributed, with a mean of 88 passengers and a standard deviation of 44.