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In statistics, a population is a set of similar items or events which is of interest for some question or experiment. [1] [2] 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 ...
Statistical subregions as defined by the United Nations Statistics Division [1]. This is the list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2024 revision of World Population Prospects.
In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model to be studied. Populations can be diverse groups of people or objects such as "all people living in a country" or "every atom composing a crystal".
In statistics, quality assurance, and survey methodology, sampling is the selection of a subset or a statistical sample (termed sample for short) of individuals from within a statistical population to estimate characteristics of the whole population. The subset is meant to reflect the whole population, and statisticians attempt to collect ...
This in turn led to a notable increase in the U.S. population in each of the years 2022, 2023, and 2024 (+0.58%, +0.83%, and +0.98%, respectively). [29] Population growth is fastest among minorities as a whole, and according to a 2020 U.S. Census Bureau analysis, 50% of U.S. children under the age of 18 are now members of ethnic minority groups ...
A statistical survey or a sample survey is an investigation about the characteristics of a phenomenon by means of collecting data from a sample of the population and estimating their characteristics through the systematic use of statistical methodology. The main advantages are the direct control over data collection and the possibility to ask ...
The European Union is a supranational union composed of 27 member states. The total English-speaking population of the European Union and the United Kingdom combined (2012) is 256,876,220 [70] (out of a total population of 500,000,000, [71] i.e. 51%) including 65,478,252 native speakers and 191,397,968 non-native speakers, and would be ranked 2nd if it were included.
Map of population density in England as at the 2011 census The non-metropolitan counties and unitary authorities of England in 2020 by total population.. The demography of England has since 1801 been measured by the decennial national census, and is marked by centuries of population growth and urbanization.