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0580/13 May/Jun 2022, Question 10: Stem-and-Leaf Diagrams

Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Calculator · 3 marks

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The question, in short

Given the masses in kg of 12 parcels, fill in a stem-and-leaf diagram and work out 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 12 parcel masses into the correct row of the stem-and-leaf diagram, using the given key.

  1. 1In order: 0.3, 0.4, 0.7, 0.8, 1.1, 1.1, 1.2, 1.2, 1.7, 1.8, 2.1, 2.3
  2. 20 | 3 4 7 8
  3. 31 | 1 1 2 2 7 8
  4. 42 | 1 3

Answer| 0 | 3 4 7 8 | | 1 | 1 1 2 2 7 8 | | 2 | 1 3 |

Part (b) · 1 mark

Calculate the median of the 12 parcel masses.

  1. 112 values: median is halfway between the 6th and 7th
  2. 26th = 1.1, 7th = 1.2
  3. 3Median = (1.1 + 1.2)/2 = 1.15 kg

Answer1.15

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Also searched as: 0580/13/M/J/22 · 0580_s22_qp_13 · 0580 s22 13 · question 10.
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