O-LevelMathematicsStatistics4024/21 · Oct/Nov 2025 · Q44 Marks

The table shows the examination marks for mathematics and physics for each of 9 students. [Table with Mathematics mark and Physics mark] [Scatter diagram grid with Mathematics mark on x-axis and Physics mark on y-axis]

(a)Complete the scatter diagram. The first 6 points have been plotted for you.[2]
(b)On the grid, draw a line of best fit.[1]
(c)Xavier scored 75 marks in the physics exam but was absent for the mathematics exam. Use your line of best fit to find an estimate of his mathematics mark.[1]

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2025). The mark or mark type is shown in brackets.

4(a) Three points plotted correctly [2] B1 for 2 correct plots
4(b) Ruled line of best fit [1]
4(c) Reading from their straight line of best fit with positive gradient at 75 marks for physics [1]

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Topic: Statistics, O-Level Mathematics (syllabus 4024). Structured question, 4 marks.
Source: O-Level Mathematics, Oct/Nov 2025 Paper 2 Variant 1, question 4.

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