The recurring up-and-down movement of a time series around trend levels that last more than one calendar year is called ____________.
A)Constant variation
B)Cyclical variation
C)Seasonal variation
D)Irregular variation

Question

Quizplus · Accepted Answer

Cyclical variation is the recurring up-and-down movement of a time series around trend levels that last more than one calendar year. Constant variation refers to the variation in a time series that remains relatively constant over time, while seasonal variation is the systematic pattern of predictable fluctuations within a calendar year. Irregular variation refers to the residual variation in a time series that cannot be explained by trend, seasonality, or cyclical factors.

The Recurring Up-And-Down Movement of a Time Series Around Trend