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28 October, 19:14

What is the mean and MAD of this data set 2,3,5,7,8,8,9

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  1. 28 October, 19:29
    0
    The mean is 6 making the M. A. D 2.28
  2. 28 October, 19:44
    0
    Mean = (2+3+5+7+8+8+9) / 7 = 42/6 = 7

    MAD (Mean Absolute Deviation =:

    [|2-7| + |3-7| + |5-7| + |7-7| + |8-7| + |8-7| + |9-7|]/7

    (5 + 4 + 2 + 0 + 1 + 1 + 2) / 7 = 15/7 = 2.143

    So Mean = 7 and MAD = 2.143
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