Class Width Calculator

In a frequency distribution, class width refers to the difference between the upper and lower boundaries of any class or category. It is calculated as:
Class width = (max – min) / n
where:
  • max is the maximum value in a dataset
  • min is the minimum value in a dataset
  • n is the number of classes
To calculate class width, simply fill in the values below and then click the “Calculate” button.

Class Width: 3.5556


Explanation:

Class Width = (max – min) / n

Class Width = (364 / 9 = 3.5556

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