Owen wants to use the Large Data Set to estimate the mean CO emissions, in g/km, of all diesel cars registered in the United Kingdom in 2020.
Using your knowledge of the Large Data Set, give two reasons why Owen cannot do this.
157 exam-style questions on AQA A Level Maths 2.2.2 Scatter diagrams and correlation. Each one has a worked solution and a mark scheme showing where the marks go.