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In ecology, a population is a group of organisms of the same species which inhabit the same geographical area and are capable of interbreeding. [2] [3] The area of a sexual population is the area where interbreeding is possible between any opposite-sex pair within the area and more probable than cross-breeding with individuals from other areas.
The Demography of the World Population from 1950 to 2100. Data source: United Nations — World Population Prospects 2017. Demography (from Ancient Greek δῆμος (dêmos) 'people, society' and -γραφία (-graphía) 'writing, drawing, description') [1] is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the ...
Population study is an interdisciplinary field of scientific study that uses various statistical methods and models to analyse, determine, address, and predict population challenges and trends from data collected through various data collection methods such as population census, registration method, sampling, and some other systems of data sources. [1]
Population geography also studies human-environment interactions, including problems from those relationships, such as overpopulation, pollution, and others. [ 3 ] A few types of maps that show the spatial layout of population are choropleth , isoline , and dot maps.
In many countries' curricula, social studies is the combined study of humanities, the arts, and social sciences, mainly including history, economics, and civics.The term was first coined by American educators around the turn of the twentieth century as a catch-all for these subjects, as well as others which did not fit into the models of lower education in the United States such as philosophy ...
For example, social stratification studies inequality and class structure; demography studies changes in population size or type; criminology examines criminal behaviour and deviance; and political sociology studies the interaction between society and state. [citation needed]
Absolute increase in global human population per year [1] Population growth is the increase in the number of people in a population or dispersed group. The global population has grown from 1 billion in 1800 to 8.2 billion in 2025. [2] Actual global human population growth amounts to around 70 million annually, or 0.85% per year.
In statistics, a population is a set of similar items or events which is of interest for some question or experiment. [1] A statistical population can be a group of existing objects (e.g. the set of all stars within the Milky Way galaxy) or a hypothetical and potentially infinite group of objects conceived as a generalization from experience (e.g. the set of all possible hands in a game of ...