A histogram is a chart that groups numeric data into buckets, displaying the buckets as segmented columns. They”re used to depict the distribution of a dataset as how often values fall into ranges. Google Charts automatically chooses the number of buckets for you. All buckets are equal width and have a height proportional to the number of data points in the bucket. Histograms are similar to column charts in other aspects. In this section we”re going to discuss following types of histogram based charts.