- In descriptive statistics, a decile is any of the 9 values that divide the sorted data into 10 equal parts, so that each part represents 1/10th of the sample or population. Thus:
- In astrology, a decile is an aspect of 36 degrees. It is one-tenth of the 360 degree circle that forms our zodiac. The decile is regarded by astrologers as a mildly beneficial aspect.