| File | Title | Manuscript Id |
|---|---|---|
| Chapter 1. Categorical Variables - pie charts and bar graphs | stat_tutor_html5_categorical_variables_pie_charts_and_bar_graphs_2009.html | 58efd03e7894d2cc68000002 |
| DLAP questions | stat_tutor_html5_categorical_variables_pie_charts_and_bar_graphs_2009_dlap.xml | 58efd03e7894d2cc68000002 |