- Decile is defined as one of ten equal groups which are divided a large group of values or statistics.
The richest 10 percent of the population is an example of a decile.
Origin: dec- plush -ile
Used by arrangement with John Wiley & Sons, Inc.
- Any one of the numbers or values in a series dividing the distribution of the individuals in the series into ten groups of equal frequency.
- Any one of the ten groups.
Origin: dec(i)- + -ile2.