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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]
A census taker visits a family of Indigenous Dutch Travellers living in a caravan in the Netherlands in 1925. A census (from Latin censere, 'to assess') is the procedure of systematically acquiring, recording, and calculating population information about the members of a given population, usually displayed in the form of statistics.
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 ...
Demographic statistics are measures of the characteristics of, or changes to, a population. Records of births, deaths, marriages, immigration and emigration and a regular census of population provide information that is key to making sound decisions about national policy. [1] [2] A useful summary of such data is the population pyramid. It ...
A demographic profile is a form of demographic analysis in which information is gathered about a group to better understand the group's composition or behaviors for the purpose of providing more relevant services. In business, a demographic profile is usually used to increase marketing efficiency.
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.
Demographic economics or population economics is the application of economic analysis to demography, the study of human populations, including size, growth, density, distribution, and vital statistics.
Confidence intervals: the red line is true value for the mean in this example, the blue lines are random confidence intervals for 100 realizations. Most studies only sample part of a population, so results do not fully represent the whole population. Any estimates obtained from the sample only approximate the population value.