Learning objective

Comprehend seasonal variations and compute seasonal components from data tables, moving averages, and time series graphs.

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

Exam focus

Cambridge IGCSE StatisticsTime series

Study support

Understand this objective

Quick explanation

This point belongs to Time series, especially Time series outcomes.
You need to be able to comprehend seasonal variations and compute seasonal components from data tables, moving averages, and time series graphs.
The key ideas to know are Calculate.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Calculate

Why it matters

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

Revision tools

Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 1Statistical Techniques6 marks

Data Table

Sales data for 12 months

a
Calculate the 3-month moving average for April.
Your answer
Aim for approximately 2 distinct marking points.
[2]
b
Determine the seasonal component for July using the moving average method.
Your answer
Aim for approximately 4 distinct marking points.
[4]

Revision notestopic notes

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