Help i need it badly

A(t)=728(1+0.04)^t how much money did aditya originally invest

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

If a || b and e || f , what if the value of y ?