You have won two tickets to a Lady Gaga concert in Atlantic City. The concert is three days from now and you have to make travel arrangements. Calculate the reliability of each of the following options:
Fly directly from the local airport to Atlantic City. The chance that the flight will leave on time and thus arrive in time for the concert is 90%, but there is also a 50% chance that you will be able to beg or borrow enough money to pay for the flight.