16:00 Box Plots and Quartiles - GCSE Higher Maths
Clear UK GCSE walkthrough of finding the median, quartiles and interquartile range from data.
Quartiles and interquartile range
Find the median, quartiles and interquartile range from lists and diagrams
5 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.
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9:42 Quartiles from a List - Corbettmaths
Corbettmaths shows exactly how to find lower quartile, upper quartile and IQR from a list.
3:53 What Are And How To Calculate Quartiles, The Interquartile Range, IQR, And Outliers Explained
Concise explainer covering quartiles, the interquartile range and spotting outliers with worked examples.
11:46 Quartiles | Lower Quartile, Median, and Upper Quartile | Math with Mr. J
Finds lower quartile, median and upper quartile clearly for both odd and even data.
12:33 How To Find The Interquartile Range & any Outliers - Descriptive Statistics
Thorough worked examples finding the interquartile range and identifying any outliers in data.