In the decomposition method,which of the following time series are not used to estimate the trend?
D) Both answers

Question

Quizplus · Accepted Answer

The decomposition method involves breaking down a time series into its components, which include trend, seasonality, cyclical, and random factors. The trend component represents the long-term direction of the series and is estimated using a moving average or other statistical method. In the given options, both choices D include time series that have clear seasonality and cyclical components, which can affect the estimation of trend. Therefore, they should not be used to estimate the trend. The other options do not have clear seasonality or cyclical components and can be used to estimate the trend.

In the Decomposition Method,which of the Following Time Series Are