Five-week course. Each week will be dedicated to a specific statistical concept, organized in different sequences and addressed in different ways (videos, texts, quizzes…). A forum, animated by the pedagogical team, will be dedicated to students’ exchanges, collaborative work and question/answer with the teacher. The participants will use the open-source software R: the installation and use will be explained step-by-step during week 0. Studying time is specified at the beginning of each week and in the heading of each sequence. In average, 6 to 8 hours of study are required weekly. In order to sustainably acquire the skills aimed by this course, it is recommended to study between 35 and 40 hours for the whole module.