Histogram Analysis is a statistical technique used to analyze the distribution of data. It is a graphical representation of the data that shows the frequency of occurrence of each data point. Histogram Analysis is used to identify patterns and trends in the data, as well as to identify outliers and other
From Wikipedia
A histogram is a visual representation of the distribution of quantitative data. To construct a histogram, the first step is to "bin" the range of values— divide the entire range of values into a series of intervals—and then count how many values fall into each interval. The bins are usually specified as consecutive, non-overlapping intervals of a variable. The bins (intervals) are adjacent and are typically of equal size.