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0580/11 Oct/Nov 2023, Question 13: Scatter Diagrams and Correlation

Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 3 marks

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The question, in short

Scatter diagram shows salary and car value for 10 office workers. Find a car value from a given salary, plot a new point, and state the correlation type.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (a) · 1 mark

Using the scatter diagram, find the car value for the person whose salary is $28 000.

  1. 1Go up from $28 000 on the Salary axis to the cross, then across
  2. 2Value of car = $4800

Answer4800

Part (b) · 1 mark

Plot a new point on the scatter diagram for salary $54 000 and car value $6100.

  1. 1Plot a cross at (54 000, 6100): salary 54 000, car value 6100

AnswerPoint plotted at (54 000, 6100)

Part (c) · 1 mark

State what type of correlation the scatter diagram shows.

  1. 1Value of car goes up as salary goes up: positive correlation

AnswerPositive

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Also searched as: 0580/11/O/N/23 · 0580_w23_qp_11 · 0580 w23 11 · question 13.
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