Interpreting Stem Plots: What to Know for AP® Statistics
In statistics, descriptive data analysis must always be done first before anything else. This is done so that you can get to know your data, find errors in data collection and data entry, and to find out basic information such as the central tendencies and dispersion characteristics of data. There are many different ways to get to know data, and you are probably most familiar with calculating central tendencies and measures of dispersion.