Population pyramids display both age-groups and sex indicators (male and female). Age-groups are represented on the vertical axis and are usually divided into five-year intervals, such as 0-4, 5-9, 10-14, and so on. This allows us to see the distribution of the population across different age categories. The horizontal axis typically represents the number or percentage of males and females in each age-group.

By including sex indicators, population pyramids provide insight into the population’s gender composition and how it changes across different age-groups. This information is important for understanding population dynamics, such as fertility rates, mortality rates, and overall population growth. Additionally, population pyramids can highlight differences in life expectancy between males and females.

In summary, population pyramids display both age-groups and sex indicators to provide a visual representation of the distribution of the population across different ages and genders.