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2018秋八年级数学上册第15章数据的收集与表示15.1数据的收集习题课件（新版）华东师大版.ppt

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第15章 数据的收集与表示 15.1 数据的收集,数据,发现,现象,事实,明确调查问题,确定调查对象,选择调查方法,展开调查,记录结果,得出结论,5,20,C,本班中男同学的平均身高,本班的全体男同学,实地调查(或问卷调查),20,0. 4,

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