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词汇
抽樣調查
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抽樣調查
chōu yàng diào chá
統計調查的組織形式之一。從統計總體中,按隨機原則抽取一部分單位作爲樣本進行調查,以其結果推斷總體一般情況的工作。如統計某一地區農業的糧食產量,可隨機選取一定比例的同等面積的地塊若干塊作爲樣本,進行實測,然後以其產量來推斷該地區的糧食總產量。
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更新时间:2026/3/11 6:14:22