... Replication 反复，重复 Representation sample 代表样品 Representative data 代表数据 ...
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sample representation 取样代表性
representation sample
表示样本
以上为机器翻译结果，长、整句建议使用 人工翻译 。
"With such a large, totally random sample, we are assured of equal representation of age, income, ethnicity, and a certain percentage of households from each state, " he says.
CNN: What's ahead for the Net (and us)?
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