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Probability involving permutations and combinations
- Intro Lesson12:34
- Lesson: 1a6:55
- Lesson: 1b9:12
- Lesson: 2a9:10
- Lesson: 2b5:58
- Lesson: 2c9:56
Probability involving permutations and combinations
Lessons
- IntroductionTwo cards are picked without replacement from a standard deck of 52 cards.
Determine the probability that both cards are queens using:
a)the multiplication ruleb)combinatorics - 1.Three prizes are awarded in a raffle to a class of 25 students. Each student holds one ticket.a)If the raffle has three identical prizes, what is the probability that Amy, Ben, and Calvin are the 3 prize winners?b)What is the probability that Amy, Ben, and Calvin win first prize of $100, second prize of $20, and third prize of $5, respectively?
- 2.A class has 6 girls and 4 boys. A committee of 3 is to be randomly selected. What is the probability of each event?a)All 3 people selected are girls.b)Only 1 person selected is a girl.c)At least 2 people selected are boys.