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Match the four observations from a tourism dataset with their most appropriate interpretations.
Observation | Pattern |
|---|---|
P | The extracted long-term movement increases gradually over several years. |
Q | The seasonal contribution for December rises from +60 to +150 across five years. |
R | One month's observed demand differs sharply from the sum of its estimated trend and seasonality. |
S | The extracted seasonal component repeats approximately every 12 observations. |
Interpretations:
Unusual remainder
Annual seasonal cycle in monthly data
Increasing long-term trend
Changing seasonal amplitude
Choose the correct matching.