The speed, $$\(v \mathrm{~km} / \mathrm{h}\)$$, of each of 200 cars passing a building is measured. The table shows the results. A new frequency table is made by combining intervals. On the grid, draw a histogram to show the information in this table.

E9.3 Construct and interpret bar charts, pie charts, pictograms, stem-and-leaf diagrams, simple frequency distributions, histograms with equal and unequal intervals and scatter diagrams. (For unequal intervals on histograms, areas are proportional to frequencies and the vertical axis is labelled ‘frequency density’.)