Chapter 13, Problem 9PC

Population

In a population, the birth rate and death rate are calculated as follows:

Birth Rate = Number of Births ÷ Population

Death Rate = Number of Deaths ÷ Population

For example, in a population of 100,000 that has 8,000 births and 6,000 deaths per year, the birth rate and death rate are:

Birth Rate = 8,000 ÷ 100,000 = 0.08

Death Rate = 6,000 4 ÷ 100,000 = 0.06

Design a Population class that stores a population, number of births, and number of deaths for a period of time. Member functions should return the birth rate and death rate. Implement the class in a program.

Input Validation: Do not accept population figures less than 1, or birth or death numbers less than 0.