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O-LevelMathematicsStatistics4024/11 · Oct/Nov 2025 · Q153 Marks

The cumulative frequency diagram shows information about journey times. [Figure 15.1]

  1. (a)Use the cumulative frequency diagram to find an estimate for the median[1]
  2. (b)Use the cumulative frequency diagram to find an estimate for the number of journeys that took 20 minutes or more.[2]

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2025). The mark or mark type is shown in brackets.

  1. [1] (a) 24
  2. [2] (b) 37
  3. [B1] for 23 stated

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About this question

Topic
Statistics, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, Oct/Nov 2025 Paper 1 Variant 1, question 15.

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