Find the mean deviation about the median for the following data; 3, 9, 5, 3, 12, 10, 18, 4, 7 , 19, 21
Here, the number of observations is11 which is odd. Arranging the data into ascending order, we get
3,3, 4, 5,7 ,9, 10, 12, 18, 19,21
The absolute values of the respective deviations from the median
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Following are the marks obtained by 9 students in a mathematics test:
50, 69,20,33, 53,39, 40, 65, 59
The mean deviation from the median is
799 666 8865
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