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Find the mean deviation about median for the following data: |
Answer» Solution :![]() Here `n=50impliesN/2=50/2=25` `:.` Median class is 20-30. Now `l_(1)=20, l_(2)=30, C=14, f=14` and median `M=l_(1)+((N/2-C)xx(l_(2)-l_(1)))/f` `M=20+((25-14)xx10)/14` `=20+7.85` `=27.85` Now MEAN deviation `=(sumf_(i)d_(i))/(sumf_(i))` `=517.1/50` `=10.342` |
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