# What is an equal interval?

**Equal Intervals**. When using statistics in psychology variables (hyperlink) are used- simply speaking a variable is something that can have different values and can vary between individuals.

**Equal interval**means that the size of a unit (or range of variables) is the same no matter where it occurs on the scale.

Accordingly, how do you find the equal interval?

**Equal Interval** classification. In **Equal Interval** Classification each class occupies an **equal interval** along the number line. They are found by determining the range of the data. The range is then divided by the number of classes, which gives the common difference.

Also Know, what is a quantile map? **Quantile** classification is a data classification method that distributes a set of values into groups that contain an equal number of values. Classes are not left empty nor do they have limited or excessive number of values. Because of the way the classes are grouped, the **maps** can sometimes be confusing or 'misleading'.

In this regard, what are natural breaks in GIS?

The Jenks **Natural Breaks** Classification (or Optimization) system is a data classification method designed to optimize the arrangement of a set of values into "**natural**" classes. A **Natural** class is the most optimal class range found "**naturally**" in a data set.

What are the methods of classification of data?

There are four types of **classification**. They are Geographical **classification**, Chronological **classification**, Qualitative **classification**, Quantitative **classification**.