what are population pyramids ? How do they help in understanding about the population of a country ?
Answers
Population Pyramid :
A population pyramid is also called an age-sex pyramid. It is a graphical representation that shows the distribution of various age groups in a population.
Uses of Population Pyramid :
(1). It is a useful tool for understanding the structure and composition of population.
(2). It graphically portrays many aspects of a population such as sex ratio and age structure.
(3). It is a graphical profile of the population’s residents.
Explanation:
A population pyramid is a way to visualize two variables: age and sex. They are used by demographers, who study populations. A population pyramid is a graph that shows the distribution of ages across a population divided down the center between male and female members of the population.
Population Composition of age and sex is usually represented by a population pyramid.
A population pyramid shows:-
- The total population divided into various age groups.The percentage of the total population, subdivided into males and females, in each of those groups.Population pyramid reflects the level of births and deaths.
It also reveals the number of dependent in a country and people in the working age bracket.
The statistics from a population pyramid help a government plan its programmes and budget, for the development of the nation.
__hru_