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Year 10 - Maths

Checking understanding of correlation

Graphical representations of data: scatter graphs and time series

Unit Summary

In this unit pupils will learn how to interpret and extract data from scatter graphs and time series graphs.

Lesson Summary

You will learn to interpret scatter graphs.

Key Notes

  • The distribution of the data points may suggest correlation.
  • The type of correlation should be interpreted in context.
  • Correlation does not mean causation.

Vocabulary To Learn

  • Correlation: Correlation describes the extent to which the relationship is close to a linear relationship.

Common Mistakes To Avoid

  • Correlation between two variables always means that one variable has a causal effect on the other.

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

The distribution of the data points may suggest correlation. The type of correlation should be interpreted in context.

2. Use this key word in a maths sentence and explain it clearly. 'Correlation'

Correlation describes the extent to which the relationship is close to a linear relationship. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Correlation between two variables always means that one variable has a causal effect on the other. Correction: Two variables may have correlation because they are both dependent on a third variable. E.g. one slide shows correlation between the number of cell towers in a region and the amount of transport emissions, which both correlate with population.

More Lessons In This Unit

Browse all guides in the Year 10 Maths guide library.