sample census

基本解释

The sample was weighted by race and gender, based on census information.
樣本家庭在人口信息的基礎上，遍佈了不同種族和性別。
Rather than looking at the whole census, the two researchers relied on a sample of one person in 250.
兩位研究員竝不是調查整個統計，而是從每250人中抽取一人作爲樣本來研究。
The data were weighted to ensure that the sample's composition reflects that of the actual U.S. population according to U.S. Census figures.
調查根據美國人口普查的數據進行加權処理，以確保樣本組成能夠代表美國實際人口組成。

The figures are not strictly comparable, because sample surveys show the sex ratio at birth, whereas the census gives it among infants up to the age of six.
ECONOMIST: India's skewed sex ratio: Seven brothers The
This sample will allow the statisticians to gauge whether some particular group was miscounted in the original census.
ECONOMIST: Statistics