What Are the Similarities and Differences of Histograms, Stem-and-Leaf Plots, Box Plots and Scatter Plots?
Plots like histograms, stem-and-leaf plots, box plots and scatter plots, are a way of looking at lots of related values without looking at bunches of numbers. Plots are essentially pictures that help you to quickly see how the numbers are related to each other. Even though something has been counted, you may not care about the exact number so much as you wish to understand a relationship.