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Year 10 - Maths

Problem solving with scatter graphs and time series

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 use your understanding of various scatter graphs and time series to solve problems.

Key Notes

  • Errors in drawing the graph will produce incorrect conclusions
  • Outliers may just be unusual results
  • These types of graphs are widely used in the media and can be misinterpreted

Vocabulary To Learn

  • Time series graphs: Time series graphs show data over a time period. The time period is always shown on the x-axis. Data points are joined chronologically by line segments.
  • A scatter graph: A scatter graph is a visual representation for bivariate data. It can be useful when determining the nature of the relationship between the variables.

Common Mistakes To Avoid

  • A plausible conclusion or claim must be true when it is presented with data.

3 Quick Questions (With Answers)

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

Errors in drawing the graph will produce incorrect conclusions. Outliers may just be unusual results.

2. Use this key word in a maths sentence and explain it clearly. 'Time series graphs'

Time series graphs show data over a time period. The time period is always shown on the x-axis. Data points are joined chronologically by line segments. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: A plausible conclusion or claim must be true when it is presented with data. Correction: Graphs can be misinterpreted, which can lead to invalid conclusions.

More Lessons In This Unit

Browse all guides in the Year 10 Maths guide library.