| File | Title | Manuscript Id |
|---|---|---|
| Chapter 1. Categorical variables: Pie Charts and Bar Graphs | stat_tutor_flash_backup_ch_1_categorical_variables_pie_charts_and_bar_graphs_2009.html | 595fcb4f7894d29629000004 |
| DLAP questions | stat_tutor_flash_backup_ch_1_categorical_variables_pie_charts_and_bar_graphs_2009_dlap.xml | 595fcb4f7894d29629000004 |