Find the mean deviation from the median for the following ungrouped data $20, 25, 30, 18, 15, 40$

6

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7

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Solution

The correct option is C $7$
Arranging the numbers in ascending order, we get $15, 18, 20, 25, 30, 40$
Median $= m = \frac{20 + 25}{2} = 22.5$
Mean deviation $= \frac{\sum_{1}^{n} x - m}{n} = \frac{(7.5 + 4.5 + 2.5 + 2.5 + 7.5 + 17.5)}{6} = 7$

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Find the mean deviation from the median for the following ungrouped data 20,25,30,18,15,40

The correct option is C 7Arranging the numbers in ascending order, we get 15,18,20,25,30,40Median =m=20+252=22.5 Mean deviation =∑n1x−mn=(7.5+4.5+2.5+2.5+7.5+17.5)6=7

Find the mean deviation from the median for the following ungrouped data $20, 25, 30, 18, 15, 40$

The correct option is C $7$
Arranging the numbers in ascending order, we get $15, 18, 20, 25, 30, 40$
Median $= m = \frac{20 + 25}{2} = 22.5$
Mean deviation $= \frac{\sum_{1}^{n} x - m}{n} = \frac{(7.5 + 4.5 + 2.5 + 2.5 + 7.5 + 17.5)}{6} = 7$