=_____________.(附:Ф(1)=0.8413)

"> =_____________.(附:Ф(1)=0.8413)

">

设随机变量X~N(1,22),则=_____________.(附:Ф(1)=0.8413)

设随机变量X~N(1,22),则=_____________.(附:Ф(1)=0.8413)


【正确答案】:0.6826
【题目解析】:
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