Scatter charts are data visualizations best used for showing the overall relationship in a large amount of data. The data is displayed as acollection of points, each having the value of one variable determining the position on the horizontal axis, and the value of the other variable determining the position on the vertical axis. Scatter charts work best when you have an integer value on both the Y- and X-axis – because if you don’t, a scatter chart simply looks like a line chart without the line.
Scatter charts are one of many types of data visualizations used to organize and present data in a way the audience can understand and take action on. To ensure visualizations have real business value, it’s important to know which types of visualizations are best suited for a given data set.