Enter the total number of classes, the maximum value, and the minimum value into the calculator to determine the overall class width.

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## Class Width Formula

The following equation can be used to calculate the class width of a data set.

CW = (M – m)/n

- Where CW is the class width
- M is the maximum value
- m is the minimum value
- n is the total number of classes.

## FAQ

**What is a class width?**

The class width is the difference between the upper and lower bonds of a class or category. These upper and lower bounds are often referred to as the maximum and minimums.

**How do you calculate class width?**

Class width is calculated by subtracting the minimum value from the maximum value and dividing by the total number of classes.

**What are the maximum and minimum values?**

The max and min values are the largest and smallest values in the data set.

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