Question: If the forecast errors for four consecutive periods are 15,9,12, and 6, then the mean squared error (MSE) is:A.121.5B.42.0C.161.0D.10.5E.14.0

If the forecast errors for four consecutive periods are 15,9,12, and 6, then the mean squared error (MSE) is:A.121.5B.42.0C.161.0D.10.5E.14.0

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