On a histogram, a class of width 8 is represented by a bar of height 4.5 cm and has frequency 24. A second class has width 5 and its bar height is 7.2 cm on the same vertical scale.
Find the frequency in the second class.
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Markscheme
2.5.1 Data presentation and interpretation Questions
8 exam-style questions on CCEA A Level Maths 2.5.1 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.