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Questions  >>  CBSE XI  >>  Math  >>  Statistics
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The weights of coffee in 70 jars is shown in the following table : Determine variance and standard deviation of the above distribution.

$\begin{array}{1 1}(A)\;4.15,3.049\\(B)\;25,1600\\(C)\;790,87\\(D)\;1.16,1.08\end{array} $

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