The distance travelled by 100 people to an event is summarised below.
| Distance (nearest mile) | Frequency |
|---|---|
| 0 – 9 | 4 |
| 10 – 14 | 19 |
| 15 – 18 | 41 |
| 19 – 20 | 26 |
| 21 – 25 | 9 |
A histogram was drawn and the bar representing the 10 – 14 class has a width of 3 cm and a height of 1.9 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.
278 exam-style questions on CCEA A Level Maths 2.5 Data presentation and interpretation, covering 2.5.1 Data presentation and interpretation, 2.5.2 Data presentation and interpretation, 2.5.3 Data presentation and interpretation, 2.5.4 Data presentation and interpretation, 2.5.5 Data presentation and interpretation, 2.5.6 Data presentation and interpretation, 2.5.7 Data presentation and interpretation, 2.5.8 Data presentation and interpretation, 2.5.9 Data presentation and interpretation, and 2.5 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.