Conditional Probability
Presentation
•
Mathematics
•
10th Grade
•
Hard
Orelene Kearse
Used 11+ times
FREE Resource
14 Slides • 0 Questions
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Conditional Probability
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Conditional Probability
The probability an event will occur given another event has already occurred.
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Independent
The event that already happened does not affect any new events.
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Dependent
The event that already happened does affect any new events.
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What is the probability of a red cube and a white cube (numbered 1-6) both landing on 3 if you know that the white cube landed on 3?
(Note: We already know that the white cube has landed on 3. We need to find the probability that the red cube will land on 3.)
1/6
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What is the probability of both cubes landing on odd numbers if you know that the white cube landed on 3?
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What is the probability of a penny, dime, and quarter all landing on tails if you know that the quarter and the penny landed on tails?
(Note: We only need to find the probability of the dime landing on tails)
1/2
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What is the probability of all 3 coins landing on tails if all you know is that the quarter landed on tails?
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What is the probability that a randomly selected student would be for the proposal, given that the student was a girl?
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What is the probability that a randomly selected student would be a boy, given that the student was for the proposal?
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What is the probability that a randomly selected student would have no opinion, given that the student was a boy?
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Find P(A|B).
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Explain what P(A|B) represents in the context of this problem.
The probability that a student is a 10th grader given they have a computer.
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Find P(B|A).
Conditional Probability
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