Combination formula | Probability and combinatorics | Probability and Statistics | Khan Academy

Video source Watch the next lesson: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/e/combinations_1?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Watch the next lesson: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/v/handshaking-combinations?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/v/introduction-to-combinations?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in … Read more