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0580/23 Oct/Nov 2024, Question 15: Box-and-Whisker Plots

Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 2 marks

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The question, in short

Using a box-and-whisker diagram of plant heights on a scale from 10 to 80 cm, find the median and the interquartile range.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (a) · 1 mark

Read the median height from the box-and-whisker diagram.

  1. 1Median = the line inside the box = 28 cm

Answer28

Part (b) · 1 mark

Work out the interquartile range of the heights from the diagram.

  1. 1Upper quartile = 53, lower quartile = 20
  2. 2IQR = 53 − 20 = 33 cm

Answer33

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Also searched as: 0580/23/O/N/24 · 0580_w24_qp_23 · 0580 w24 23 · question 15.
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