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Unit 4 covers Time Series Analysis, defining time series as a sequence of observations over time and detailing its components: secular trend, seasonal variation, cyclical variation, and irregular variation. It also discusses methods for calculating moving averages and fitting straight-line trends using least squares, with examples provided for both 3-year and 4-year moving averages. Additionally, the unit addresses shifting the origin of trend equations and changing units of measurement.

Author
pushkar.sethi321
Language
EN

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