“安全来说,(溺水)比的都是百万人里的数据,1个和10个就真的天差地别?我看运气成分比重不小。”
(假定统计数据:会水的每年百万人里淹死1个,不会水的每年百万人里淹死10个)
实际上,汽车事故,美国每年死三万多,溺水死亡,没这么多。概率可是更小啊,运气成分比重更大吧。
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概率基数和样本时间范围是什么?
-biglow-
♂
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01/05/2015 postreply
08:30:19
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