Any predictable change or pattern in a time series that recurs or repeats over a one-year period can be said to be seasonal.
What is Seasonality in Marketing?
Seasonality
Seasonality is a characteristic of a time series in which the data experiences regular and predictable changes which recur every calendar year. Any predictable change or pattern in a time series that recurs or repeats over a one-year period can be said to be seasonal.
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