Mathematics 0580 · IGCSE · Interpreting statistical data

Interpreting statistical data — practice question

The bar chart displays the marks achieved by a set of 55 students in an examination. The vertical axis is labelled 'Number of students'. The horizontal axis is labelled 'Marks' and has class intervals: 1 to 20, 21 to 40, 41 to 60, 61 to 80, 81 to 100.
(main)[3]

Calculate the percentage of these students who obtained marks from 21 to 80.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use $(12 + 15 + 18) \div 55 \times 100$” …

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