Question

What are the primary statistics used to study population change and what is the purpose of each?

Answer 1

Demographers collect data about populations and they use them to predict what the populations in the future would be like. Population density is an average number of people living in an area. hope this helps. :)

Answer 2

The primary statistics used for studying population change include:

• Population size which refers to the number of people in a specific population. An 'increase or decrease' in the population size helps to know about the 'actual number' of people.

• Mortality or 'Death rate' is the number of individual deaths in a population contributing to a decrease in population.

• Birthrate or Fecundity is the 'number of births per unit' of time leading to an increase in the population.