Probability of A or B

12/06/24 Probability Rules Flashcards

Flashcard
•
Mathematics
•
12th Grade
•
Hard
Linda Puckett
FREE Resource
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10 questions
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1.
FLASHCARD QUESTION
Front
Back
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
2.
FLASHCARD QUESTION
Front
Probability of A and B (Independent)
Back
P(A ∩ B) = P(A) · P(B)
3.
FLASHCARD QUESTION
Front
Probability of A and B (Dependent)
Back
P(A ∩ B) = P(A) · P(B|A)
4.
FLASHCARD QUESTION
Front
Complement Rule
Back
P(A') = 1 - P(A)
5.
FLASHCARD QUESTION
Front
Practice: P(A) = 0.3, P(B) = 0.5, P(A ∩ B) = 0.1. Find P(A ∪ B).
Back
P(A ∪ B) = 0.3 + 0.5 - 0.1 = 0.7
6.
FLASHCARD QUESTION
Front
Practice: P(A) = 0.4, P(B|A) = 0.6. Find P(A ∩ B).
Back
P(A ∩ B) = 0.4 · 0.6 = 0.24
7.
FLASHCARD QUESTION
Front
Practice: P(A) = 0.7. Find P(A').
Back
P(A') = 1 - 0.7 = 0.3
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