Stem and leaf plot

Stem and leaf plot. This is a basic stemplot that correctly uses a monospace font and has a manageable data set. The highlight on the mode is probably extraneous, as in most cases a stemplot needs to be with a dataset small enough that the mode should be immediately obvious. A highlight may be called for in the third example.

http://www.nhhealthcost.org/method.aspx NHID HealthCost Analysis Methodology]. This graph calls itself a stemplot but looks much like a histogram because it substitutes symbols for numbers. Its major disadvantage is that it doesn't retain the ability to display raw numbers, which is a valuable aspect of stemplots. Additionally, each symbol represents "up to" 3 instances, so the actual number of instances cannot be arrived at by counting instances.

Back-to-back stem and leaf plot This variation presents two sets of data using the same stem, an efficient and data-dense way of presenting multiple sets.

Amount of Sleep and GPA in Graduate Students at Ohio University (pages 6 and 7). Useful for more than simply tallying instances, stem and leaf plots can be used to analyze patterns by looking at the physical shape of the data.