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demographic data — English
Statistics that describe the characteristics of a population. A variety of statistics could be used for this purpose, namely absolute numbers, means or averages, percentages, quartiles, percentiles, and so forth. Examples of these statistics are: the total number of people living in a country, region, city or town; the percentage of females in the population; the average age of the men in a population; the percentage of children younger than 15 years in a certain group of people (a population); the infant mortality rate; and many more. These figures convey useful information about that particular population. Geographers use various visual representation techniques to describe the demographics of populations, for example bar charts, population pyramids, pie diagrams, and choropleth maps. (See “choropleth map” and “thematic map”.)
