Mechanical Engineering > GATE 2025 > Forecasting
Considering the actual demand and the forecast for a product given in the table below, the mean forecast error and the mean absolute deviation, respectively, are
| Period | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Actual demand | 425 | 421 | 426 | 416 | 422 | 418 | 430 | 420 | 415 | 427 |
| Forecast | 427 | 418 | 423 | 422 | 416 | 422 | 415 | 430 | 419 | 420 |
Correct : b
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