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Further Mathematics: Units 3 and 4

The median, range and interquartile range (IQR)

Summarising numerical data

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Summarising numer…
About this lesson
This video looks at the median. range and Interquartile Range with a view to measures of spread of data. Whilst we have looked at using the Range before, it isn't very useful if there are outliers. Hence, we can use a new idea called the Interquartile Range to help us look at the range of the middle 50 percent of the data. This means that outliers have less of an impact. There are a number of worked examples which show how to find the IQR. There is also some great exam help and information.
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VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au

Video details
  • Title The median, range and interquartile range (IQR)
  • Section Summarising numerical data
  • Course Further Mathematics: Units 3 and 4

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