A cereal company is putting 1 of 4 prizes in each box of cereal. The prizes are evenly distributed
So the probability of winning any given prize is always 1/4.
Lily wonders how many boxes she should expect to buy to get all 4 prizes. She carried out 20
trials of a simulation and her results are shown below. Each dot
represents how many boxes it
took to get all 4 prizes in that trial.
56 7.8
10 11 12 13 14 15
# of boxes purchased
Use her results to estimate the probability that it takes fewer than 7 boxes to get all 4 prizes.
Give your answer as
either a fraction or a decimal.
C
P(fewer than 7 boxes) ~
