Statistics

The mean deviation about the mean for the following data is
\begin{array}{c|l|l|l|l|l}
\hline \text { Class interval } & 0-2 & 2-4 & 4-6 & 6-8 & 8-10 \\\\
\hline \text { Frequency } & 1 & 3 & 5 & 3 & 1 \\\\
\hline
\end{array}