The mean deviation from the mean of the data given below is $\begin{array}{|l|l|l|l|l|l|} \hline \text {…
The mean deviation from the mean of the data given below is
$\begin{array}{|l|l|l|l|l|l|}
\hline \text { Marks: } & 10 & 15 & 20 & 25 & 30 \\
\hline \text { Number of students: } & 2 & 4 & 6 & 8 & 5 \\
\hline
\end{array}$