In the set of numbers
5,5,6,6,6,7,7,7,7,7,8,8,8,8,8,8,9,9,9,10,10
There are 21 items.
5,5,6,6,6,7,7,7,7,7, 8, 8,8,8,8,8,9,9,9,10,10
Therefore, the median is the 11th item
Median = 8
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