A long-term movement up or down in a time series is called:
A)seasonality.
B)trend.
C)randomness.
D)cycle.

Name: A long-term movement up or down in a time series is called: A)seasonality. B)trend. C)randomness. D)cycle.
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Question

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A trend refers to the long-term movement in a time series, either upwards or downwards. Seasonality refers to the predictable short-term fluctuations, randomness refers to the erratic and unpredictable movements, and cycles refer to recurring patterns in a time series.

A Long-Term Movement Up or Down in a Time Series