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| ==Etymology== | | ==Etymology== |
| Latin, from censēre - to rate, assess, estimate. | | Latin, from censēre - to rate, assess, estimate. |
− | *Date: [http://www.wikipedia.org/wiki/17th_Centur 1634] | + | *Date: [https://www.wikipedia.org/wiki/17th_Centur 1634] |
| ==Definitions== | | ==Definitions== |
| *1 : a count of the [[population]] and a property evaluation in early [[Rome]] | | *1 : a count of the [[population]] and a property evaluation in early [[Rome]] |
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| *3 : count, tally | | *3 : count, tally |
| ==Description== | | ==Description== |
− | A '''census''' is the [[procedure]] of [[systematically]] acquiring and recording [[information]] about the members of a given [[population]]. It is a regularly occurring and official count of a particular population. The term is used mostly in [[connection]] with national population and door-to-door censuses (to be taken every 10 years according to [http://en.wikipedia.org/wiki/United_Nations United Nations] recommendations), [[agriculture]], and [[business]] censuses. The term itself comes from [[Latin]]: during the [http://en.wikipedia.org/wiki/Roman_Republic Roman Republic] the census was a list that kept track of all adult [[males]] fit for military service. | + | A '''census''' is the procedure of [[systematically]] acquiring and recording [[information]] about the members of a given [[population]]. It is a regularly occurring and official count of a particular population. The term is used mostly in [[connection]] with national population and door-to-door censuses (to be taken every 10 years according to [https://en.wikipedia.org/wiki/United_Nations United Nations] recommendations), [[agriculture]], and [[business]] censuses. The term itself comes from [[Latin]]: during the [https://en.wikipedia.org/wiki/Roman_Republic Roman Republic] the census was a list that kept track of all adult [[males]] fit for military service. |
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| + | The census can be [[contrasted]] with [https://en.wikipedia.org/wiki/Sampling_(statistics) sampling] in which [[information]] is obtained only from a subset of a [[population]], sometimes as an [https://en.wikipedia.org/wiki/Intercensal_estimate Intercensal estimate]. Census [[data]] is commonly used for [[research]], [[business]] marketing, and planning as well as a base for sampling surveys. In some countries, census data is used to apportion electoral representation (sometimes controversially - e.g. see [https://en.wikipedia.org/wiki/Utah_v._Evans Utah v. Evans]). |
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− | The census can be [[contrasted]] with [http://en.wikipedia.org/wiki/Sampling_(statistics) sampling] in which [[information]] is obtained only from a subset of a [[population]], sometimes as an [http://en.wikipedia.org/wiki/Intercensal_estimate Intercensal estimate]. Census [[data]] is commonly used for [[research]], [[business]] marketing, and planning as well as a base for sampling surveys. In some countries, census data is used to apportion electoral representation (sometimes controversially - e.g. see [http://en.wikipedia.org/wiki/Utah_v._Evans Utah v. Evans]).
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| ==Census and privacy== | | ==Census and privacy== |
| While the census provides a useful way of obtaining [[statistical]] [[information]] about a [[population]], such information can sometimes lead to [[abuses]], [[political]] or otherwise, made possible by the linking of [[individuals]]' [[identities]] to [[anonymous]] census data. This consideration is particularly important when [[individuals]]' census [[responses]] are made available in microdata form, but even aggregate-level data can result in [[privacy]] breaches when dealing with small areas and/or rare subpopulations. | | While the census provides a useful way of obtaining [[statistical]] [[information]] about a [[population]], such information can sometimes lead to [[abuses]], [[political]] or otherwise, made possible by the linking of [[individuals]]' [[identities]] to [[anonymous]] census data. This consideration is particularly important when [[individuals]]' census [[responses]] are made available in microdata form, but even aggregate-level data can result in [[privacy]] breaches when dealing with small areas and/or rare subpopulations. |