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Posted by on Sunday, May 4, 2014 at 8:19pm.

how do u find the mean absolute deviation and what are the steps too!!

  • math mrs. sue HELP!!! - , Monday, May 5, 2014 at 12:53pm

    Say you have a data set {4,6,8,9,10}
    1. Find the mean = (4+6+8+9+10)/5=7.4
    2. Sum the deviations from the mean (absolute values, no negatives)
    |(4-7.4)|+|(6-7.4)|+|(8-7.4)|+|(9-7.4)|+|(10-7.4)| = 9.6
    3. Divide the sum by the number of data (n=5) to get 9.6/5=1.92
    4. 1.92 is the mean absolute deviation required.

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