Question: A forecasting method has produced the followingdata over the past five months. Whatis the mean absolute deviation? Actual Forecast 10 12 9 10 5 9

A forecasting method has produced the followingdata over the past five months. Whatis the mean absolute deviation?

Actual Forecast
10 12
9 10
5 9
8 8
10 7

A. -1.0

B. 2.0

C. 5.0

D. 3.0

E. 4.0

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