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The forecasts in the last four periods were 11, 20, 35, and 29 units. The actual demands were 16, 27, 35, and 24 units. What

The forecasts in the last four periods were 11, 20, 35, and 29 units. The actual demands were 16, 27, 35, and 24 units. What is the mean absolute deviation for this forecast? (provide two digits to the right of the decimal point)

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