The distance travelled by 100 people to an event is summarised below.
| Distance (nearest mile) | Frequency |
|---|---|
| 0 – 9 | 7 |
| 10 – 14 | 25 |
| 15 – 18 | 38 |
| 19 – 20 | 22 |
| 21 – 25 | 8 |
A histogram was drawn and the bar representing the 10 – 14 class has a width of 3.5 cm and a height of 1.5 cm.
Find the width and height of the bar representing the 15 – 18 class.
Find the width and height of the bar representing the 19 – 20 class.
160 exam-style questions on Edexcel A Level Maths Representations of Data, covering 3.1 Outliers, 3.2 Box Plots, 3.3 Cumulative Frequency, 3.4 Histograms, and 3.5 Comparing Data. Each one has a worked solution and a mark scheme showing where the marks go.