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| 1. |
Find the variance and standard deviation from the following data: |
Answer» Solution : Arithmetic mean `BAR=(sumf_(i)x_(i))/(sumf_(i))=120/24=5` Variance `sigma^(2)=(sumf_(i)(x_(i)-barx)^(2))/(sumf_(i))=152/24=6.33` Standard DEVIATION `sigma=sqrt(6.33)=2.52` |
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