Multiple Choice
A company has developed a linear trend model to forecast monthly sales. The following data show the actual sales and the "fitted" sales for months 1-12. 
Based on these data, what is the value for the mean absolute deviation for months 1-12?
A) Approximately 975
B) About 81
C) Nearly 150
D) None of the above
Correct Answer:
Verified
Correct Answer:
Verified
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