Use a histogram when: The data are numerical. You want to see the shape of the data's distribution, especially when determining whether the output of a process is distributed approximately normally. Analyzing whether a process can meet the customer's requirements.

What's a histogram used for?

Histograms are commonly used in statistics to demonstrate how many of a certain type of variable occurs within a specific range. For example, a census focused on the demography of a country may use a histogram to show how many people are between the ages of 0 - 10, 11 - 20, 21 - 30, 31 - 40, 41 - 50, etc.

What are the benefits of using a histogram?

Histograms allow viewers to easily compare data, and in addition, they work well with large ranges of information. They are also provide a more concrete from of consistency, as the intervals are always equal, a factor that allows easy data transfer from frequency tables to histograms.