Periodic patterns in a time series that complete themselves within a calendar year or less and then are repeated on a regular basis represent the __________ component of a time series.
A)trend
B)seasonal variations
C)cycle
D)irregular component
E)random

Question

Quizplus · Accepted Answer

Seasonal variations are periodic patterns that repeat themselves within a calendar year or less, and are a result of regular events or patterns such as the seasons or holidays. The other components of a time series, such as trend and cycle, are longer-term patterns that extend beyond a year. The irregular component and random component do not have any periodic patterns.

Periodic Patterns in a Time Series That Complete Themselves Within