A variable xxx, measured to the nearest integer, has frequencies 10, 9, 14 and 17 in the classes 5–8, 9–13, 14–20 and 21–24. On a printed histogram, the 9–13 bar is 2 cm wide and 2.7 cm high.
Find the printed width and height of the 14–20 bar.
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.