40 students enter for a game of shot-put competition. The distance thrown (in metres) is recorded below : Use a graph paper to draw an ogive for the above distribution.Use a scale of $2\,\mathrm{cm}=1\,\mathrm{m}$ on one axis and 2 $\mathrm{cm}=5$ students on the other axis.Hence using your graph find:(i) the median(ii) Upper Quartile(iii) Number of students who cover a distance which is above $16\,\frac{1}{2}\,\mathrm{m}$.