During the medial check up of 35 students of a class,

To draw the 'less than' type ogive, we plot the points (38, 0), (40, 3), (42, 5), (44, 9), (46, 14), (48, 28), (50, 32) and (52, 35) on the graph.

Median from the graph = 46.5 kg.

median class is (46-48). (See in the table)

We have $\ell=46, \mathrm{f}=14, \mathrm{cf}=14, \mathrm{n}=35$ and $\mathrm{h}=2$.

$\operatorname{Median}=\ell+\left\{\frac{\frac{\mathbf{n}}{\mathbf{z}}-\mathbf{c f}}{\mathbf{f}}\right\} \times \mathrm{h}$

$=46+\left\{\frac{\frac{35}{2}-14}{\mathbf{1 4}}\right\} \times 2=46+\frac{\mathbf{1}}{\mathbf{2}}=46.5 \mathrm{~kg}$

Hence, the median is same as we have noticed from the graph