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5. 产生均数有抽样误差的根本原因是()
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5. 产生均数有抽样误差的根本原因是()
A、个体差异
B、群体差异
C、样本均数不同
D、总体均数不同
时间:2021-09-01 19:08
关键词:
青书学堂
河南城建学院
安全工程
高等数学
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A
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5. 产生均数有抽样误差的根本原因是()
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