The table gives the mathematics and physics examination marks for each of the 9 students.
(a)[2]
Complete the scatter diagram. The first 6 points are already plotted for you.
(b)[1]
On the grid, draw the line of best fit.
(c)[1]
Xavier scored 75 marks in the physics exam but did not attend the mathematics exam. Use your line of best fit to estimate his mathematics mark.
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Three points have been plotted correctly” …
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