The following videos explain how to complete time series analysis questions in QCE General Maths, including smoothing averaging, seasonal indices, deseasonalising data and relating back to least squares.
Mean Smoothing
This video explains mean smoothing using Excel.
Deseasonalising Data
This video explains deseasonalising time series data.
Analysing and Interpreting
This video compiles the information together to allow us to analysing and interpret the results.
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