What is Percentile?
A '''percentile''' (or a centile) is a measure in [[statistics]]. It is a way of expressing where an observation falls in a range of other observations. For example, if a score falls in the 20th percentile, this means that 20 percent of all the scores recorded are equal to or lower. If a score is in the 90th percentile, this means that 90 percent of all the other scores were equal to or lower than that score. In [[statistics]], percentiles are found by taking a large set of numerical [[data]], arranging it in ascending order, and then dividing it into 100 groups with an equal number of data points. Each of the 99 dividing points is called a '''percentile''' of the data set. Some of the percentiles have special names. For example. the 25th, 50th and 75th percentiles are called the first, second and third [[quartile]], respectively.<ref>{{Cite web|title=Percentiles|url=https://www.mathsisfun.com/data/percentiles.html|access-date=2020-10-13|website=www.mathsisfun.com}}</ref> The 50th percentile is also called the [[median]]. == Related pages == * [[Decile]] == References == <references /> {{Statistics}} {{math-stub}} [[Category:Statistics]]