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O-LevelMathematicsStatistics4024/12 · Oct/Nov 2020 · Q162 Marks

The heights of a sample of plants were measured. The results are shown in the table and in the histogram. Height (h cm) | 5<h≤10 | 10<h≤15 | 15<h≤25 | 25<h≤40 Frequency | 15 | 25 | p | 30

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

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2020). The mark or mark type is shown in brackets.

  1. [1] 16(a) 40
  2. [1] 16(b) Rectangle: base 25 to 40, height 2

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About this question

Topic
Statistics, O-Level Mathematics (syllabus 4024). Structured question, 2 marks.
Source
O-Level Mathematics, Oct/Nov 2020 Paper 1 Variant 2, question 16.

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