The average daytime temperature for 10 days is recorded. A shop also records its ice cream sales for each of the 10 days. The scatter graph shows this information.
| Average temperature (°C) | Ice cream sales (£) |
|---|---|
| 8.5 | 65 |
| 9.5 | 90 |
| 12.5 | 115 |
| 14.5 | 140 |
| 15.5 | 175 |
| 17.5 | 170 |
| 18.5 | 150 |
| 21 | 190 |
| 22.5 | 75 |
| 23 | 220 |
a.[1]
What type of correlation does the scatter graph show?
b.[1]
One of the points is an outlier. Write down the coordinates for this point.
c.[2]
On another day the temperature was 12°. Estimate the ice cream sales on this day.
Scatter Graphs Questions
Practise Edexcel GCSE Maths Scatter Graphs with exam-style questions for Foundation and Higher tier. 56 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.