Question 8
A car dealership records the age of 10 cars and their resale price. The scatter graph shows this information.
| Age of car (years) | Resale Price (£1000s) |
|---|---|
| 1 | 18.5 |
| 2 | 16.0 |
| 3 | 14.5 |
| 4 | 12.0 |
| 5 | 11.5 |
| 6 | 9.0 |
| 7 | 8.5 |
| 8 | 6.0 |
| 9 | 5.5 |
| 10 | 3.0 |
a.[1]
What type of correlation does the scatter graph show?
b.[2]
A car is 5.5 years old. Estimate the resale price of this car.
c.[1]
The dealer wants to use the scatter graph to predict the resale price for a car that is 20 years old. Comment on the reliability of this prediction.
Scatter Graphs Questions
55 exam-style questions on AQA GCSE Maths Scatter Graphs. Each one has a worked solution and a mark scheme showing where the marks go.