# If for a distribution $\sum (x-5) =3,\sum (x-5)^2 =43$ and the total number of items is $18$. Find the mean and standard deviation .
$\begin{array}{1 1}(A)\;11,22\\(B)\;25,1600\\(C)\;5.16,1.54\\(D)\;15,3.45\end{array}$