Quartile vs. Percentile — What's the Difference?

In statistics, a quartile is a type of quantile which divides the number of data points into four parts, or quarters, of more-or-less equal size. The data must be ordered from smallest to largest to compute quartiles; as such, quartiles are a form of order statistic.

In statistics, a percentile (or a centile) is a score below which a given percentage of scores in its frequency distribution falls (exclusive definition) or a score at or below which a given percentage falls (inclusive definition). For example, the 50th percentile (the median) is the score below which (exclusive) or at or below which (inclusive) 50% of the scores in the distribution may be found.

Each of four equal groups into which a population can be divided according to the distribution of values of a particular variable

Each of the 100 equal groups into which a population can be divided according to the distribution of values of a particular variable.

Any of the groups that result when a frequency distribution is divided into four groups of equal size.

Any of the groups that result when a frequency distribution is divided into 100 groups of equal size.

Any of the values that separate each of these groups.

Any of the values that separate each of these groups.

(statistics) Any of the three points that divide an ordered distribution into four parts, each containing a quarter of the population.

(statistics) Any of the ninety-nine points that divide an ordered distribution into one hundred parts, each containing one per cent of the population.

(statistics) Any one of the four groups so divided.

(statistics) Any one of the hundred groups so divided.

Same as Quadrate.

(statistics) any of the 99 numbered points that divide an ordered set of scores into 100 parts each of which contains one-hundredth of the total

(statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores