statistics 1 question
sajeerWhich of the following statements regarding components of a time series are true? (Check all that apply.)
| [removed] | 1 | Trend is a constant or steady increase or decrease in the data/measurements over time. |
| [removed] | 2 | Cyclical variation is gradual movement around the trend line that is always attributable (caused by) the business cycle and economic conditions. |
| [removed] | 3 | Seasonal variation is unpredictable increases and decreases that occur within a calendar year. |
| [removed] | 4 | Irregularity is what is left after taking into account Trend, Cyclical, and Seasonal behavior. It has no observable patterns. It is random. |
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