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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 = (36 – 4) / 9 = 3.5556