A histogram bar representing 20<t≤35 20<t\leq35\,20<t≤35 has width 4.5 cm, height 3.6 cm and frequency 72. A second class is 35<t≤45 35<t\leq45\,35<t≤45 and has frequency 80.
Find the width and height, in centimetres, of the second bar on the same diagram.
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.