Rather than looking at the whole census, the two researchers relied on a sample of one person in 250.
两位研究员并不是调查整个统计，而是从每250人中抽取一人作为样本来研究。
The sample was weighted by race and gender, based on census information.
样本家庭在人口信息的基础上，遍布了不同种族和性别。
The sample was weighted by race and gender, based on census information.
样本家庭在人口信息的基础上，遍布了不同种族和性别。
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