Effective Data Visualization with R

The goal of this activity is for the students to expand their data visualization knowledge and toolset to create visualizations that use data to answer specific questions. They will learn effective ways to visualize data, as well as some general rules of thumb to follow when creating visualizations. All visualization tasks in this tutorial will be applied to two datasets, one of vaccination data from the World Health Organization, the other of fast-food restaurants in the western United States. Throughout the activity, students will have to think critically about what type of plots are best suited to answer the research questions. They will then write down R code to generate those plots in ggplot2, and be prompted to critique and improve them. Quiz questions are automatically checked for correctness.  This activity is modified from the Data Science 100 course material, as developed in the Statistics Department of the University of British Columbia.