diff --git a/intro-r-data-analysis/Intro_to_R_materials.zip b/intro-r-data-analysis/Intro_to_R_materials.zip index 63b7d30..4426d6b 100644 Binary files a/intro-r-data-analysis/Intro_to_R_materials.zip and b/intro-r-data-analysis/Intro_to_R_materials.zip differ