Question: If the forecast for September is based on the data series below and the forecast for September is 19, then which forecasting method was used?
If the forecast for September is based on the data series below and the forecast for September is 19, then which forecasting method was used?
| January | February | March | April | May | June | July | August |
| 18 | 21 | 20 | 22 | 21 | 20 | 21 | 17 |
Moving average (n = 2)
Moving average (n = 3)
Averaging
Last value
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