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Testing a forecast: MAE and MAPE
Revision card: Testing a forecast: MAE and MAPE. Example data table with Average error in units: 8.33; Average error as % of actual: 8.4%; Test before trusting it: holdout test.

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Testing a forecast: MAE and MAPE
Example
data table with Average error in units: 8.33; Average error as % of actual: 8.4%; Test before trusting it: holdout test
Learn this in the lesson: 31. Forecasting in Excel