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Learning objective

Construct a cumulative frequency distribution from a given frequency distribution and vice versa, demonstrating the ability to switch between these two forms.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE StatisticsFrequency distributions

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Quick explanation

Construct a cumulative frequency distribution from a given frequency distribution and vice versa, demonstrating the ability to switch between these two forms

  • This point belongs to Frequency distributions, especially Frequency distributions outcomes.
  • You need to be able to construct a cumulative frequency distribution from a given frequency distribution and vice versa, demonstrating the ability to switch between these two forms.
  • The key ideas to know are Determine, Show, and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DetermineShowExplain

Why it matters

This objective helps connect Frequency distributions outcomes to exam-style questions, flashcards, and revision notes for Frequency distributions.

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Practice Questions7 linked questions

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Paper 1 structured question: Frequency distributions

Paper 1Statistical Techniques5 marks

Data Table

Books Read by Students

Number of books read (class intervals) and frequency

Number of booksFrequency
0-25
3-58
6-812
9-1110
12-145
  1. a

    Calculate the cumulative frequency for each class interval.

    Aim for approximately 5 distinct marking points.

    [5]
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