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O-LevelMathematicsStatistics4024/11 · Oct/Nov 2022 · Q203 Marks

20 A farmer records the mass of each of his sheep. Some of the results are summarised in the table and illustrated in the histogram. [Table with Mass (m kg) and Frequency data. Histogram with Frequency density on y-axis and Mass (kg) on x-axis.]

  1. (a)Use the histogram to find the value of a.[1]
  2. (b)Complete the histogram.[2]

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2022). The mark or mark type is shown in brackets.

  1. [1] 30
  2. [2] Rectangle: base 20 to 30, height 4 and Rectangle: base 30 to 50, height 1
  3. B1 for one correct rectangle

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About this question

Topic
Statistics, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, Oct/Nov 2022 Paper 1 Variant 1, question 20.

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