Suppose that the last four months of sales were 8, 10, 15, and 9 units, respectively. suppose further that the last four forecasts were 5, 6, 11, and 12 units, respectively. what is the mean absolute deviation (mad) of these forecasts?

36/60

36/2=18

60/2=30

18/30

18/3=6

30/3=10

6/10

6/2=3

10/2=5

your final answer would be 3/5 of an

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the answer is 8/21

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answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation: