Population Growth - Birth rate and death rate

Population Growth - Factors Influencing Population Change

Definition of Term

An increase in the number in a population is known as population growth.

The rate of population growth is determined by factors such as natural Increase and migration.

Natural Increase

Natural increase refers to when births are more than deaths

Birth Rate

The number of live births for every 1000 persons in the population.

Formula for calculating birth rate

Number of live birth  $\div$  total population  $\times$  1000

Death Rate

The number of deaths for every 1000 persons in a country

Formula for calculating Death rate

Number of deaths  $\div$  total population  $\times$  1000

Formula for Natural Increase

Birth Rate  $-$  death rate

                      OR
Births   $-$  Deaths

Calculating Natural Increase

If the birth rate of Jamaica in 1999 was 3000 and the death rate was 1500.

What was the natural increase?