Question 11
Which of the following best describes the components of a time series in a classical multiplicative decomposition model?
The series is a product of a trend component and an error component only
The series is a sum of a trend component, a seasonal component, and acyclical component
The series is a product of a trend component, a seasonal component, and anerror component
The series is a sum of a trend component, a seasonal component, and a errorcomponent