lanna0626 lanna0626

03-06-2016
Mathematics

contestada

Check my answer please?

Check my answer please class=

Respuesta :

03-06-2016

Hello,

In my old memories,
p(μ-2σ<=X<=μ+2σ)=95%
p(μ-3σ<=X<=μ+3σ)=99%

1000-2*200=1000-400=600
1000+2*200=1000+400=1400

Answer A

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