Quick Reference ~ A maths Dictionary for Kids by Jenny Eather Email jeather@iprimus.com.au A Maths Dictionary for Kids by Jenny Eather at www.amathsdictionaryforkids.com

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Ii

interquartile range (IQR)

• a measure of spread equal to the upper quartile (Q3)
minus the lower quartile (Q1) in a data set.
IQR = Q3 - Q1

EXAMPLES:
interquartile range (IQR)

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