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Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number



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  • Popoola Sultan

    20+25+21+27+28+29/6
    =150/6=25
    (20-25)+(25-25)+(21-25)+(27-25)+(28-25)+(29-25)/6
    18/6=3
    B.

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