A cereal company is putting 1 of 3 prizes in each box of cereal. The prizes are evenly distributed so the
probability of winning any given prize is always 1/3
Mohamed wonders how many boxes he should expect to buy to get all 3 prizes. He carried out 24 trials of
a simulation and his results are shown below. Each dot represents how many boxes it took to get all 3
prizes in that trial.
3
4 5
6
7 8
9 10 11 12
# of boxes purchased
Use his results to estimate the probability that it takes more than 3 boxes to get all 3 prizes
Give your answer as either a fraction or a decimal
P(more than 3 boxes) C