某调查公司对居民食用油需求量进行抽样调查（重复抽样）。若该城市共有居民家庭10000户，从中抽选100户，已知样本标准差为9千克，求抽样误差。_市场调研与预测_远程教育查题网

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题目：某调查公司对居民食用油需求量进行抽样调查（重复抽样）。若该城市共有居民家庭10000户，从中抽选100户，已知样本标准差为9千克，求抽样误差。
答案： <查看本题扣3积分>

答：0.0001..... 查看答案

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