M-STA-012Higher onlyReview: Pending

Find quartiles and interquartile range

Statistics · Distributions (T-STA-004)

v1 mapping, pending teacher review. Only AQA and Edexcel are mapped so far. The first 3 pilot worksheets and their worked answers are available; remaining worksheets are coming soon. All videos are still coming soon.

Retrieval: Order data and locate the median
Fluency: Quartiles, IQR and outliers
Reasoning: Compare both typical value and spread with evidence.
Application: Compare spread using IQR
Common misconception: Histogram area represents frequency when widths differ.

Video brief

Model how to find quartiles and interquartile range. Explain each step; pause for a matching shadow question.

Planned video: V-STA-012 · Video coming soon

Worksheets

Worksheets coming soon

Note: Use a stated quartile convention where small discrete data sets could produce different conventions.