Mean Deviation About Median Formula. When the mean deviation is calculated about the median the formula becomes. This includes the median which is the n 2 th order statistic or for an even number of samples the arithmetic mean of the two middle order statistics.
This includes the median which is the n 2 th order statistic or for an even number of samples the arithmetic mean of the two middle order statistics. Large m d about median frac sum f left x median right sum f the mean deviation about the mode is. Overline x frac sum of all the values of the observations no.
M d frac sum f x m sum f sum summation.
The formula to find the mean deviation for a discrete series is. Finding the standard deviation. Co efficient of mean deviation from mean frac m d overline x co efficient of mean deviation from median frac m d m the co efficient of mean deviation from mode frac m d mode solved examples. M d frac sum f x m sum f sum summation.
