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2 years ago

1/3+1/4 using simplest form

Mathematics

1 answer:

BlackZzzverrR [31]2 years ago

8 0

Well
1/3-1/4=1/12
so 1/3=1/12+1/4=1/12+3/12=4/12
and 1/4=-(1/12-1/3)=-1/12+1/3=-1/12+4/12=3/12
4/12+3/12=7/12

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Given sample mean $x^{-} = 57.55$

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S.E = $\frac{S.D}{\sqrt{n} }$

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$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )$

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