| You and your friends are making friendly bets for ice-cream. Your goal is to pick a purple ticket, and you will get free ice-cream. The box contains 10 purple tickets and 15 black tickets. One of your friends drew first, and got a black ticket, without replacement. Your turn is next. What is the chance you will pick a purple ticket? |
Carlos Rodriguez <carlos@math.albany.edu>
This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind