Therefore, the box plots provide a more complete picture of the data than did the bar chart. It is not easy to compare histograms of different distributions such as the twelve museum exhibitions ...

Box plots are a simple but powerful graphing tool that can be used in place of histograms to address both goals. Whereas histograms require a sample size of at least 30 to be useful, box plots ...

Figure 12.5: Identifying Extreme Observations These are observations 40 and 217. When you click on them, the observations are selected in the box plot, the histogram, and the data window as well.