Mathematics 0580 · IGCSE · Scatter diagrams

Scatter diagrams — practice question

Six students revise for a test. The scatter diagram displays how many hours each student spent revising and the mark they achieved in the test. The axes are labelled Time (hours) and Mark.
(a)[1]

Plot the two points on the scatter diagram.

(b)[1]

What type of correlation appears on the scatter diagram?

(c)[1]

Draw a line of best fit across the scatter diagram.

(d)[1]

Estimate the mark for this student.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: The plotted points are $(4.5,33)$ and $(6.5,35)$

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