问题标题：
【Whatdoes"abagweighingwithin5%ofthemean"meanintheparagraphasbelow?Theweightofabagsofflourhasameanof5poundswithastandarddeviationof0.16ofapound.Giventheweightisnormaldistributed,whatistheprobabilityofabag】
问题描述：
Whatdoes"abagweighingwithin5%ofthemean"meanintheparagraphasbelow?
Theweightofabagsofflourhasameanof5poundswithastandarddeviationof0.16ofapound.Giventheweightisnormaldistributed,whatistheprobabilityofabagweighingwithin5%ofthemean?
金鸿回答：
一包面粉的平均重量是5pound（偏差0.16/pound）,这里考虑重量是正态分布,一包面粉重量在平均值的5%之内的概率是多少?
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