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O-LevelMathematicsStatistics4024/12 · Oct/Nov 2021 · Q215 Marks

The cumulative frequency diagram shows the masses, m grams, of 120 eggs. [Figure X.X]

  1. (a)(i)the median,[1]
  2. (a)(ii)the interquartile range.[2]
  3. (b)Eggs are described as 'large' if their mass is 63 g or more. How many of these eggs are large?[2]

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2021). The mark or mark type is shown in brackets.

  1. [1] 58
  2. [2] 11
  3. B1 for 62 or 51 written
  4. [2] 21 to 24
  5. B1 for 96 to 99 written

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About this question

Topic
Statistics, O-Level Mathematics (syllabus 4024). Structured question, 5 marks.
Source
O-Level Mathematics, Oct/Nov 2021 Paper 1 Variant 2, question 21.

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