diff --git a/09_Scientific_Data_Analysis_Python/09a_Descriptive_Statistics.pptx b/09_Scientific_Data_Analysis_Python/09a_Descriptive_Statistics.pptx index ecc986a81e9aa3d44f46e22ced3c2ab2a9a4cc35..90add0a790f3208eb87e3bf4887a086f589b75b5 100644 Binary files a/09_Scientific_Data_Analysis_Python/09a_Descriptive_Statistics.pptx and b/09_Scientific_Data_Analysis_Python/09a_Descriptive_Statistics.pptx differ diff --git a/09_Scientific_Data_Analysis_Python/09b_Scientific_Data_Analysis_with_Python.pptx b/09_Scientific_Data_Analysis_Python/09b_Scientific_Data_Analysis_with_Python.pptx index 6609249d76e7acf2886307ed173eec6de36ed070..fabe76676fcb83518ac8d83e6e3b1ced875f2519 100644 Binary files a/09_Scientific_Data_Analysis_Python/09b_Scientific_Data_Analysis_with_Python.pptx and b/09_Scientific_Data_Analysis_Python/09b_Scientific_Data_Analysis_with_Python.pptx differ