The masses, m m\,m kg, of 50 cars are summarised in the table below.
| Mass (kg) | Frequency |
|---|---|
| 1000<m≤12001000 < m \le 12001000<m≤1200 | 8 |
| 1200<m≤14001200 < m \le 14001200<m≤1400 | 22 |
| 1400<m≤16001400 < m \le 16001400<m≤1600 | 14 |
| 1600<m≤20001600 < m \le 20001600<m≤2000 | 6 |
Use linear interpolation to estimate the median mass of these cars.
105 exam-style questions on WJEC A Level Maths 2.2 Data presentation and interpretation, covering 2.2.1 Data presentation and interpretation, 2.2.2 Data presentation and interpretation, 2.2.3 Data presentation and interpretation, 2.2.4 Data presentation and interpretation, 2.2.5 Data presentation and interpretation, 2.2.6 Data presentation and interpretation, 2.2.7 Data presentation and interpretation, 2.2.8 Data presentation and interpretation, and 2.2 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.