U.S. National Standards
N.5. Data Analysis and Probability (NCTM)
5.1. Formulate questions that can be addressed with data and collect, organize, and display relevant data to answer them.
5.1.2. Select, create, and use appropriate graphical representations of data, including histograms, box plots, and scatterplots.
5.2. Select and use appropriate statistical methods to analyze data.
5.2.2. Discuss and understand the correspondence between data sets and their graphical representations, especially histograms, stem-and-leaf plots, box plots, and scatterplots.