Are histograms used to represent discrete series?

Histograms - Understanding the properties of histograms, what they show, and when and how to use them | Laerd Statistics. read more

No, they are used to classify data into categories based on numerical value, or some other classification. It is a way to visualize the relative frequency of each class, and the spread of values. read more

Histograms are a special form of bar chart where the data represent continuous rather than discrete categories. This means that in a histogram there are no gaps between the columns representing the different categories. In the example below, a histogram has been used to show the average height of children of different ages in 1837. read more