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0580/12 May/Jun 2024, Question 9: Stem-and-Leaf Diagrams

Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 3 marks

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The question, in short

Using monthly pizza delivery counts for one year, complete a stem-and-leaf diagram with stems 2 to 5, then find the median.

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

Part (a) · 2 marks

Place each of the twelve delivery counts into the correct row of the stem-and-leaf diagram, using the given key.

  1. 1In order: 22, 28, 36, 39, 41, 44, 48, 49, 52, 54, 57, 57
  2. 22 | 2 8, 3 | 6 9, 4 | 1 4 8 9, 5 | 2 4 7 7

Answer| 2 | 2 8 | | 3 | 6 9 | | 4 | 1 4 8 9 | | 5 | 2 4 7 7 |

Part (b) · 1 mark

Find the median of the twelve delivery counts.

  1. 112 values: median is between the 6th and 7th values, 44 and 48
  2. 2Median = (44 + 48) ÷ 2 = 46

Answer46

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Also searched as: 0580/12/M/J/24 · 0580_s24_qp_12 · 0580 s24 12 · question 9.
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