Question 4 — IGCSE 0580 Oct/Nov 2024 Paper 22
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Statistics · Scatter diagrams. Worth 5 marks.
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Question text
4 The scatter diagram shows the number of rooms and the number of people in each of eight buildings.
70
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40
Number of
rooms
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0
0 10 20 30 40 50 60 70 80
Number of people
(a) One of the buildings has 67 rooms.
W rite down the number of people in this building.
................................................. [1]
(b) In another building there are 42 people and 33 rooms.
On the scatter diagram, plot this point. [1]
(c) (i) On the scatter diagram, draw a line of best fit. [1]
(ii) There are 45 people in a different building.
Find an estimate for the number of rooms in this building.
................................................. [1]
(d) What type of correlation is shown in the scatter diagram?
................................................. [1]
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