The median of a set of numbers is the middle number in the set (after the numbers have been arranged from least to greatest) or, if there are an even number of data, the median is the average of the middle two numbers.
just to say, The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half. In simple terms, it may be thought of as the "middle" value of a data set.
