The scatter graph shows the maximum temperature and the number of hours of sunshine in fourteen British towns on one day - Edexcel - GCSE Maths - Question 1 - 2017 - Paper 1
Question 1
The scatter graph shows the maximum temperature and the number of hours of sunshine in fourteen British towns on one day.
One of the points is an outlier.
(a) Writ... show full transcript
Worked Solution & Example Answer:The scatter graph shows the maximum temperature and the number of hours of sunshine in fourteen British towns on one day - Edexcel - GCSE Maths - Question 1 - 2017 - Paper 1
Step 1
(a) Write down the coordinates of this point.
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Answer
The coordinates of the outlier point on the graph are (10, 19).
Step 2
(b) For all the other points write down the type of correlation.
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Answer
The correlation for all other points is positive, indicating that as the number of hours of sunshine increases, the maximum temperature also tends to increase.
Step 3
(c) Estimate the number of hours of sunshine in this town on this day.
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Answer
Given that the maximum temperature is 16.4°C, we can estimate the number of hours of sunshine to be in the range of 12 to 13 hours, as the graph suggests a correlation within this range.
Step 4
(d) Does the scatter graph support what the weatherman says? Give a reason for your answer.
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Answer
Yes, the scatter graph supports the weatherman's statement. It shows that higher temperatures tend to occur on days with more sunshine, as indicated by the positive correlation observed in the data.
