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For the following time series, you are given the moving average forecast. Time Period Time Series Value Moving Average Forecast 1 25 2 18 3

For the following time series, you are given the moving average forecast.

Time Period	Time Series Value	Moving Average Forecast
1	25
2	18
3	17
4	28	20
5	12	21
6	23	19
7	18	21

The MAE equals_________

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