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Describing and interpreting patterns in time series data

Describe time series plots by identifying features, including trend (long-term direction, e.g. increasing/decreasing), seasonality (systematic, calendar-related movements) and irregular fluctuations (unsystematic, short-term fluctuations).

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Interactive

Reading a time series — trend, season, irregular

manipulative

Switch trend, seasonality and irregular movement in and out of one monthly series on a fixed axis, and name the features that are actually visible.

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