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Find the mean deviation using arithmetic mean from the following table:

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Find the mean deviation using arithmetic mean from the following table:
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Arithmetic mean `barx=(sumf_(i)x_(i))/(sumf_(i))=1320/48=27.5`
Mena devition `=(sumf_(i)|x_(i)-barx|)/(sumf_(i))`
`=450/48=9.375`
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