Skyjet Airlines offers two fare classes for coach seats on a particular flight: full-fare class at $315/ticket and economy class at $190/ticket. The seating capacity of each aircraft is 120 seats. There is strong demand for economy tickets. Thus, the airline must determine a protection level for the full-fare class travelers. Skyjet has the following historical data for full-fare ticket demand. Using the data as an empirical distribution, determine the optimal protection level for the full- fare class travelers,