How to calculate class width?

Understand the Problem

The question is asking for a method to calculate the class width in statistics, which pertains to the range of values contained within each class interval in a frequency distribution.

\text{Class Width} = \frac{\text{Range}}{\text{Number of Classes}}

To calculate the class width, divide the range of the data by the number of classes.

Steps to Solve

1. Determine the range of data

Find the smallest and largest values in the dataset to determine the range.

$$\text{Range} = \text{Maximum Value} - \text{Minimum Value}$$

1. Choose the number of classes

Decide how many classes (or intervals) you want to divide your data into. This is often given or decided by the person analyzing the data.

1. Calculate the class width

Divide the range by the number of classes to find the class width.

$$\text{Class Width} = \frac{\text{Range}}{\text{Number of Classes}}$$

If necessary, round up to a convenient number to ensure all data points are included.

To calculate the class width, divide the range of the data by the number of classes.