The class width refers to the length of the class interval in a frequency distribution.
Given a large amount of data in raw form, it becomes important to partition the data into class intervals in order to present the data in the form of a grouped frequency distribution table. This makes the data much easier to understand.
In such cases, it is important to decide what width the class interval should have. The class width calculator below finds the value for the class width.
The class width can be calculated using the formula,
Enter the values in the calculator below to obtain the class width.
Class Width: 3.5556
Class Width = (36 – 4) / 9 = 5