What is the correct formula to determine the class width for continuous data?

The correct approach to determining the class width for continuous data involves using the maximum and minimum values of the data set. The formula that accurately represents this is the difference between the maximum and minimum values divided by the number of bins or classes you wish to create. This ensures that the range of the data is evenly distributed across the specified number of intervals.

Using the formula (max-min)/# of bins allows for a clear understanding of how wide each class should be in order to cover the entire range of data points. This division results in equal-sized bins, which are necessary for proper statistical analysis and data representation, thus making it easier to visualize and interpret the data.

This approach ensures that all the values in continuous data are properly categorized and represented without bias toward any segment of the data range. It's also essential for creating histograms and frequency distributions, which rely on appropriately set bin widths to provide an accurate depiction of data distribution.