In descriptive statistics, specific points called quantiles are identified. These quantiles are given specific designations depending on their position. For example, the median represents the 2nd quantile, terciles the 3rd quantile, quartiles the 4th quantile, quintiles the 5th quantile, deciles the 10th quantile, and percentiles the 100th quantile. In marketing, the quartile is often preferred because it allows the studied population to be divided into four groups of equal size.