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Find the standard deviation from the following observations: 15,18,13,20,17,10,16,19,22,20. |
Answer» Solution : Here `N=10` LET ASSUMED mean `a=16` STANDARD DEVIATION `sigma=sqrt((sumd_(i)^(2))/n-((sumd_(i))/n)^(2))` `=sqrt(128/10-(10/10)^(2))` `sigma=sqrt(12.8-1)` `=sqrt(11.8)=3.42` |
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