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Module 1: Trends

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Seasonal patterns

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XSIQ
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Core Mathematics - Seasonal patterns

Seasonal patterns

Seasonal pattern

A seasonal pattern exists if a time series repeats itself from year to
year, typically between corresponding quarters of the year.

The shape of this graph roughly repeats itself over the course of two
years.

Note the troughs in quarters 3 and 7 and the peaks in quarters 1 and 5. In
each case these key features are repeated every four quarters.

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