Percentile Command

Percentile( <List of Numbers>, <Percent> )

Let P equal the given Percent.

Returns the value that cuts off the first P percent of the list of numbers, when the list is sorted in ascending order. Percent must be a number in the interval 0 < P ≤ 1.

Example:

Percentile[{1, 2, 3, 4}, 0.25] yields 1.25.

Note: The commands Quartile and Percentile use different rules and do not always return matching results.

Example:

Q1[{1, 2, 3, 4}] yields 1.5.

Percentile[{1, 2, 3, 4}, 0.25] yields 1.25.