| File | Title | Manuscript Id |
|---|---|---|
| Chapter 1. Categorical variables: Pie Charts and Bar Graphs | stat_tutor_backup_20170608_ch_1_categorical_variables_pie_charts_and_bar_graphs_2009.html | 5939a03f7894d2fa7f000004 |
| DLAP questions | stat_tutor_backup_20170608_ch_1_categorical_variables_pie_charts_and_bar_graphs_2009_dlap.xml | 5939a03f7894d2fa7f000004 |