What is an advantage of using a stem and leaf display over a dotplot?

Using a stem and leaf display has the significant advantage of preserving the individual data values, which is one of its key strengths. This type of visualization allows for a detailed breakdown of data while simultaneously showcasing the distribution in an organized manner. Each "stem" represents a range of values, while the "leaves" show the actual data points within those ranges, making it easy to see both the individual data points and their organization into groups.

This preservation of information can be particularly beneficial when one needs to analyze the specific values, as opposed to a dotplot that typically represents frequency with dots that can sometimes obscure individual data points. Overall, a stem and leaf display offers clarity about the data while also allowing viewers to maintain a connection to each specific measurement, making it a powerful tool for statistical analysis.