**This is a whole-class spreadsheet activity which uses the ‘hide and reveal' technique to explore the interpretation of scatter graphs.**Pupils are encouraged to write explanations of the relationships shown.

Year 9 Objectives covered:

- Interpret graphs and diagrams and make inferences to support or cast doubt on initial conjectures
- Have a basic understanding of correlation

- describe the type of correlation
- interpret the correlation in terms of the data
- add a line of best fit

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