Outliers in scatter graphs

12 questions

1. Extrapolation is when you estimate values that are ___ the range of available data
2. Which values are obtained by interpolation on this scatter diagram?
3. Select the regions where extrapolation can be used to make estimations on this scatter graph.
4. Alex says, “I can always use interpolation to make a valid prediction when my bivariate data has correlation.” Is Alex definitely correct?
5. The scatter graph shows data taken from the ONS, where each point represents a region in England and Wales in 2023. Select which of these Oak pupils can use this graph to make an accurate prediction.
6. The scatter graphs shows information about house prices and income in different regions. Estimate the difference between the house prices in the North and South for a median income of £25 000
7. An ___ is a data point that is extremely large or small compared to the rest of the dataset.
8. Which of these points are an outlier?
9. Sam says that it is possible to have a dataset with no outliers. Is Sam correct?
10. The scatter graph shows information about number of children and number of elderly people in a set of towns. Each point represents a town. Match each outlier to the correct statement.
11. Sofia says you should never ignore an outlier. Is Sofia correct?
12. Jacob says you should show the outlier on a scatter graph. Is Jacob correct?

License: OGL