The time series component that reflects a long-term,relatively smooth pattern or direction exhibited by a time series over a long time period (more than one year)is called:
A)random variation
B)cyclical variation
C)seasonal variation
D)long-term trend

Question

Quizplus · Accepted Answer

Long-term trend is the component of a time series that reflects a long-term, relatively smooth pattern or direction exhibited by a time series over a long time period (more than one year). It can be increasing, decreasing or remain constant over time.

The Time Series Component That Reflects a Long-Term,relatively Smooth Pattern