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In this video, I suggest you review the entire course on the chapter on conditional probabilities. The purpose of this sequence is to remind you and explain the most important elements of the chapter: 0:00 Intro 0:50 Concept of conditional probability 8:52 Probability trees 20:00 The formula for total probabilities 22:23 The concept of independent events ???? Official website: http://www.maths-et-tiques.fr Twitter: / mtiques Facebook: / mathsettiques Instagram: / yvanmonka