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]). | 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]). |