Transient Population Modify Programming Challenge 17 to also consider the effect...

Transient Population

Modify Programming Challenge 17 to also consider the effect on population caused by people moving into or out of a geographic area. Given as input a starting population size, the annual birth rate, the annual death rate, the number of individuals that typically move into the area each year, and the number of individuals that typically leave the area each year, the program should project what the population will be numYears from now. You can either prompt the user to input a value for numYears, or you can set it within the program.

Ref:

Population

In a population, the birth rate is the percentage increase of the population due to births, and the death rate is the percentage decrease of the population due to deaths. Write a program that asks for the following:

• The starting size of a population (minimum 2)

• The annual birth rate

• The annual death rate

• The number of years to display (minimum 1)

The program should then display the starting population and the projected population at the end of each year. It should use a function that calculates and returns the projected new size of the population after a year. The formula is

N = P(1 + B)(1 - D)

where

• N is the new population size,

• P is the previous population size,

• B is the birth rate,

• and D is the death rate.

Annual birth rate and death rate are the typical number of births and deaths in a year per 1,000 people, expressed as a decimal. So, for example, if there are normally about 32 births and 26 deaths per 1,000 people in a given population, the birth rate would be .032 and the death rate would be .026.