Population pyramid
Graphical illustration showing distribution of age groups in a population
Population pyramid
A population pyramid (also age structure diagram or age-sex pyramid) is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid when the population is growing. Males are usually shown on the left and females on the right, and they may be measured in absolute numbers or as a percentage of the total population. The pyramid can be used to visualize the age of a particular population. It is also used in ecology to determine the overall age distribution of a population; an indication of the reproductive capabilities and likelihood of the continuation of a species. Number of people per unit area of land is called population density.
Read on Wikipedia · Image Max Roser from OurWorldinData.org, CC BY 4.0
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