https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:prob-comb/x9e81a4f98389efdf:addition-rule-prob-precalc/v/addition-rule-for-probability 2021-07-01T17:39:46Z Addition rule for probability Venn diagrams and the addition rule for probability Sal Khan video https://cdn.kastatic.org/googleusercontent/Bf6MZCeyotuvNzQ7zcv1XGuUDq3NjdIaP_dLZudyn_q7YhjU8t-GoNKQM_dtArCQk9WHBF6jU1uz_9bhYhbkKF8XnQ Addition rule for probability Venn diagrams and the addition rule for probability https://cdn.kastatic.org/ka-youtube-converted/QE2uR6Z-NcU.mp4/QE2uR6Z-NcU.mp4 643 Regla de la suma en probabilidades https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:prob-comb/x9e81a4f98389efdf:addition-rule-prob-precalc/a/addition-rule-for-probability-basic 2026-03-06T16:30:33.181933133Z Addition rule for probability (basic) article https://www.khanacademy.org/math/statistics-probability/probability-library/addition-rule-lib/e/adding-probability 2026-04-08T00:16:02.937952483Z Adding probabilities Find four probabilities for each problem: P(A), P(B), P(A and B), and P(A or B). Ben Lucki exercise