Question: Problem 1: If the forecast errors for four consecutive periods are 2, -4,6, and 4, what are: a) the mean absolute deviation? b) the mean

Problem 1: If the forecast errors for four consecutive periods are 2, -4,6, and 4, what are: a) the mean absolute deviation? b) the mean squared error? Problem 2: If the forecast errors for five consecutive periods are 6, -3, -7, 7, and 2, what are: a) the mean absolute deviation? b) the mean squared error

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