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Scatter graphs & correlation
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20 questions at your level
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Scatter graphs & correlation
10 questions
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The scatter graph shows the hours students revised and their test scores.
2
4
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10
20
30
40
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60
70
80
Hours revised
Test score
Describe the type of correlation shown.
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Level 1
1 mark
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A scatter graph of the age of a car against its value shows that as age increases, value decreases. What type of correlation is this?
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Level 1
1 mark
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Predicting from a line of best fit
10 questions
Lesson
Not started
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The scatter graph shows the hours students revised and their test scores, with a line of best fit.
2
4
6
8
10
20
30
40
50
60
70
80
Hours revised
Test score
Use the line of best fit to estimate the score of a student who revised for
4.5
4.5
4.5
hours.
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Level 1
1 mark
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Mark as done
The scatter graph shows the hours students revised and their test scores, with a line of best fit.
2
4
6
8
10
20
30
40
50
60
70
80
Hours revised
Test score
Explain why the line should
not
be used to estimate the score of a student who revised for
20
20
20
hours.
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Level 1
1 mark
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