Refer to the NASCAR and breakfast cereal example. What if the cereal company decided to make it harder to get some drivers’ cards than others? For instance, suppose the chance that each card appears in a box of the cereal is Jeff Gordon, 10%; Dale Earnhardt, Jr., 30%; Tony Stewart, 20%; Danica Patrick, 25%; and Jimmie Johnson, 15%.

How would you modify the simulation in the example to estimate the chance that a fan would have to buy 23 or more boxes to get the full set?