A n2 chart is a type of graph that's used to display the results of a statistical test. It shows data about the performance of something (like a machine, process, or experiment) in a visual form. The graph is split into two parts: the top (or "n2") section and the bottom ("chart") section. The n2 section is where the data from the statistical test are plotted. The chart section is a graph of the data from the n2 section, which makes it easier to interpret the results.