ROSECODE 108
Repeated Appereance
by sinan
How many times must a die with 6 faces be thrown, on average, until one face appears 4 times?
For example, one set of throws might be 1,2,1,4,3,5,2,4,6,1,3,1.
Submit your answer as a/b, where a and b are two relatively prime, positive integers.
How many times must a die with 6 faces be thrown, on average, until one face appears 4 times?
For example, one set of throws might be 1,2,1,4,3,5,2,4,6,1,3,1.
Submit your answer as a/b, where a and b are two relatively prime, positive integers.