Percentile function

To use this function, choose Calc > Calculator.

Percentiles divide the data set into parts. Usually, the nth percentile has n% of the observations below it, and (100-n)% of observations above it.

Example of percentiles

Of the total data values, 25% lie below the 25th percentile (red region), while 75% lie above the 25th percentile (white region).

Syntax

PERCENTILE(number,probability)

Calculates the sample percentile, for a specified probability and number (the column containing the sample data). Missing values are ignored. The probability must be between 0 and 1, inclusive, and indicates the percentile. For example, to determine the 1st quartile (25th percentile) of a column of data, enter the column number and the probability 0.25.

Example

Column Calculator expression Result
C1 contains 2, 3, 5, and 7 PERCENTILE (C1,0.25) 2.25
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