Suppose that the last four months of sales were 8, 10, 15, and 9 units, respectively. Suppose further that the last four forecast were 9, 11, 8 and 12 units, respectively. What is the mean absolute deviation (MAD) value of these forecast?
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Consider a modified version of the very famous tic-tac-toe game in which player 1 moves, then player 2 moves, and then player 3 moves and the game ends. The number of strategies for player 1, 2, and, 3 are respectively: a. 9, 72, and 504. b.
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