Find the mean deviation from (i) mean and (ii) median for the following data: Marks : 20 18 16 14 12 10 8 6 No. of Students : 2 4 9 18 27 25 14 1 (Ans. Mean Deviation = 2.24, Mean Deviation from Median = 2.24)
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The mean deviation about the median is calculated by ∑|xi−M|n . Now, put the value of median in the formula and mean deviation about median is obtained. Complete step-by-step answer: The ungrouped data is given in the question.
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