The following table shows the hospitalisation rate for New Zealand Covid patients, broken down by age-group. For each age-group, the hospitalisation probability shown is the total number of hospitalisations divided by the total number of cases in that age-group.

a. Is this a probability distribution? Explain your answer.

b. Taking just the 50–59 age-group for an example, write down another table specifying a probability distribution for this age-group.