Definition : A bar graph showing the percentage of the age, sex and race of the population.
1) Age :
- Young/School age. (0-19 years old) – Dependent.
- Working age. (20-60 years old) – Independent.
- Retired /Ageing people. (60 above) – Dependent
2) Sex : Male and Female.
3) Race : Ethnic group. eg. Malays, Chinese, Indians, White, Black.
- Belly Shaped/U-shaped.