Rajesh P. answered 04/20/14
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Median is the middle value after arranging the data in ascending or descending order. If there are even number of values in a data set, then we take the average of the middle two values.
Let us arrange the data in ascending order first.
15, 50, 52, 55, 59, 60, 62, 64, 65, 90, 97
We have 11 values in this data set. So the median is the middle or 6th value which is 60.