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Learning objective

Recognize the importance of calculating moving averages in data analysis.

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

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Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE StatisticsTime series

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Quick explanation

Recognize the importance of calculating moving averages in data analysis

  • This point belongs to Time series, especially Time series outcomes.
  • You need to be able to recognize the importance of calculating moving averages in data analysis.
  • The key ideas to know are Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Explain

Why it matters

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

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Flashcards10 linked cards

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Practice Questions7 linked questions

Question 1 of 7

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Paper 1 structured question: Time series

Paper 1Statistical Techniques3 marks

Data Table

Monthly Sales Data

Sales units for 8 months

MonthSales (units)
1120
2135
3150
4160
5155
6170
7165
8180
  1. a

    Calculate the 3-month moving average for months 3 to 8.

    Aim for approximately 3 distinct marking points.

    [3]
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