Time-series data
A) show the behavior of a particular variable over time.
B) may exhibit trend or cyclical variation, but not both at the same time.
C) may exhibit trend or cyclical variation at the same time.
D) both a and b
E) both a and c

Question

Quizplus · Accepted Answer

Time-series data can exhibit both trend and cyclical variation at the same time. Trend refers to the long-term direction of the data, while cyclical variation refers to regular fluctuations in the data over a period of time. Therefore, both options A and C are correct. Option B is incorrect as time-series data can exhibit both trend and cyclical variation simultaneously.

Time-Series Data