Age composition indicates the number of people that belong to different age groups.
The population of a nation is generally grouped into three broad categories:
- Working age adults
Dependency ratio is the ratio of the dependent population to the working-age population of the country. The percentage of children and the aged affect the dependency ratio.
Sex ratio is the ratio of males to females in a population. It is calculated as the number of females per 1000 males of the population. The sex ratio in India has always remained unfavourable to females.