Suppose there are three molecules, and that the probability of remaining is thought to be p = 0.6. In a sample of 80 cells, we find 10 with 0 molecules, 20 with 1 molecule, 30 with 2 molecules, and 20 with 3 molecules.
The number of molecules remaining in a cell is thought to follow a binomial distribution with the given parameter. In each case, find whether there is reason to reject this model.