# math mrs. sue HELP!!!

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

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1. 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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posted by MathMate

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