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Find the mean deviation about mean from the following data: xi35202527fi51220815

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Find the mean deviation about mean from the following data: <br><table><tbody><tr><th>x<sub>i</sub></th><td>3</td><td>5</td><td>20</td><td>25</td><td>27</td></tr><tr><th>f<sub>i</sub></th><td>5</td><td>12</td><td>20</td><td>8</td><td>15</td></tr></tbody></table><br>






 
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