Question: 3- A forecasting method has produced the following over the past five months. What is the mean absolute deviation? Actual 10 8 10 6 9

3- A forecasting method has produced the following over the past five months. What is the mean absolute deviation? Actual 10 8 10 6 9 Forecast 11 10 8 6 8 Error -1 -2 2 0 1 Error 1 2 2 0 1
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