Year 9 · Maths
Averages, Spread and Scatter Graphs
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Focus on scatter graphs correlation and causation. Open support for “Calculate the Interquartile Range”, then explain the idea in your own words.
Year 9 learners practise scatter graphs correlation and causation.
The activities include Calculate the Interquartile Range, Find Modal and Median Classes from Grouped Data, Find the Averages and Range of Ungrouped Data, and related practice. The checked support below includes video, worksheet, teaching, lesson. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.
Activities covered
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- Calculate the Interquartile Range — support from YouTube — Whats Up Dude
- Find Modal and Median Classes from Grouped Data — support from YouTube — corbettmaths
- Find the Averages and Range of Ungrouped Data — support from Oak National Academy
- Find the Mean for Grouped Data — support from BBC Bitesize
- Read Scatter Graphs and Distinguish between Correlation and Causation — support from Oak National Academy
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Watch it explained
watch a video explanation
What Are And How To Calculate Quartiles, The Interquartile Range, IQR, And Outliers Explained
Best for: a clear explanation before you practise
Grouped Data
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Summarising data
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Estimated Mean - Corbettmaths
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Correlation
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Learn it properly
lessons and teaching pages
Graphical representations of data: lesson sequence
Best for: worked examples and step-by-step teaching
Numerical summaries of data: lesson sequence
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Practise it
questions and activities to try
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Print and finish
worksheets away from the screen
Representing data
Best for: pencil-and-paper practice away from the screen
Median from Grouped Data Practice Questions
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Scatter Graphs Practice Questions
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