A line chart shows changes over time in a data set by connecting two data points with a line. It's useful when you have ...

Once continuous data has been sorted into class intervals, it can be represented in a frequency chart, or a range of other types of graphs. These charts help to interpret the data. It is useful to ...

Control charts can be used for both continuous and discrete data. While the format and calculations vary as a function of the type and amount of data, the core concepts and purpose are the same.