Edexcel Gcse Mathematics (Linear) - Scattergraphs Page 4
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3. Some students revised for a mathematics exam.
They used an internet revision site.
The scatter graph shows the times seven students spent on the internet revision site and
the marks the students got in the mathematics exam.
100
90
80
70
60
Mark
50
40
30
20
10
0
2
4
6
8
10
12
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Hours on the site
Here is the information for 3 more students.
Hours on the site
7
10
16
Mark
50
56
78
(a) Plot this information on the scatter graph.
(1)
(b) What type of correlation does this scatter graph show?
..................................................
(1)
(c) Draw a line of best fit on the scatter graph.
Lots more free papers at
(1)
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