Question: A forecasting method has produced the following data over the past 5 months shown in the data set. What is the mean absolute deviation (accurate

A forecasting method has produced the following data over the past 5 months shown in the data set. What is the mean absolute deviation (accurate to 1 decimal)? 1.2 1.4 \( -0.8 \) \( -4.0 \)

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