Learn in the textbookDescriptive Statistics (Measures of Central Tendency and Dispersion)
DefinitionThe median (中央値) is the value that sits in the middle when the data are arranged in order of size.
ExplanationWith an odd number of values, the median is the single middle value; with an even number, it is the average of the two middle values. Since it depends only on position in the sorted order, making the largest value even larger leaves the median unchanged.
AnalogyIn a line of people sorted by height, the height of the person standing exactly in the middle is the median.