IB skill practice

Use moving averages in time series

Calculate a moving average and interpret smoothing in a time series.

Paper 1, Paper 2 5 marks Difficulty 3

Use moving averages in time series - exam decision

A retail demand model records three consecutive values 25, 28, and 30. Calculate the 3-point moving average. Confirm the interpretation before entering the result. Enter the requested value and choose the interpretation that matches the result.

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