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Find the standard deviation of 8,11,14,17,20,23,26. |
Answer» Solution : Here `n=7` Arithmetic MEAN `BARX=(sumx_(i))/n=119/7=17` STANDARD deviation `sigma=SQRT((sum(x_(i)-barx)^(2))/n)` `=sqrt(252/7)=sqrt(36)=6`. |
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