Solution
MAD: Mean Absolute Deviation
The given Data are : 65, 52,43,51
[tex]\text{Mean(m) = }\frac{65+52+43+51}{4}\text{ = }\frac{211}{4}\text{ = 52.75}[/tex][tex]\begin{gathered} M.A.D=\frac{\sum ^{}_{}|x\text{ -m| }}{n} \\ \text{ =}\frac{|65-52.75|+|52-52.75|+|43-52.75|+|51-52.75|}{4} \\ =\frac{12.25+0.75+9.75+1.75}{4} \\ =\frac{24.5}{4} \\ =\text{ 6.125} \end{gathered}[/tex]
