What is the term for dividing a total into four equal segments?

The term for dividing a total into four equal segments is "quartile." This concept comes from statistics and is primarily used to describe data distribution. When data is divided into quartiles, it creates three points (the first quartile, the second quartile, and the third quartile) that break the data set into four equal parts, ensuring that each segment contains 25% of the data. This measure helps in understanding the spread and central tendencies of the data.

The other terms relate to different divisions: "decile" refers to dividing a data set into ten equal parts, "percentile" divides data into one hundred equal parts, and "segment" is a more general term that does not specifically refer to statistical divisions.