- 问题详情:绿豆在相同条件下的发芽试验,结果如下表所示:每批粒数n100300400600100020003000发芽的粒数m9628238257094819122850发芽的频数0.9600.9400.9550.9500.9480.9560.950则绿豆发芽的概率估计值是 ()A.0.96 B.0.95 C.0.94 ...
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- 问题详情:某瓷砖厂在相同条件下抽取部分瓷砖做耐磨实验,结果如下表所示:抽取瓷砖数n100300400600100020003000合格品数m9628238257094919062850合格品频率0.9600.9400.9550.9500.9490.9530.950则这个厂生产的瓷砖是合格品的概率估计值是.(精确到0.01)【回答】0.95【分析】根据...
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