Definition: | - 0,5-fractile of a probability distribution
- for n real values not necessarily different from each other, real number such that the number of values less than it is equal to the number of values greater than it
NOTE If n is odd, the median is the value of rank when the values are arranged in increasing order. If n is even, the median may be any number between the values of rank and , usually the arithmetic mean of these two values.
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