Complementary events and conditional probability [Hinglish] | Probability | Grade 12 | Math

From the creator

This video focuses on solving probability problems that involve complementary events (like 'not A' or 'not B') in the context of conditional probability. We'll work through several examples that require using formulas for unions, intersections, and conditional probabilities to find values like P(B complement intersect A) or P(A complement intersect B complement). Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/math/ncert-class-12/x7ce8ca9c5869750b:probability-ncert-new/x7ce8ca9c5869750b:multiplication-rule-on-probability/e/multiplication-rule-of-probability) Timestamps: 00:00 Problem 1: Find P(B complement intersect A) given P(A), P(B), and P(A U B) 01:25 Problem 2: Find P(A) and P(B|A complement) given other probabilities 03:40 Problem 3: Evaluate an expression with P(A complement | B complement) 06:00 Problem 4: Find P(A complement intersect B complement) given P(A), P(B), and P(A|B) Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Ashish Gupta

Published 2025-06-17 · Watch on YouTube ↗
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