Probability Flashcards by Sean Weldon

Q

How to find P(A|B)

A

P(AnB)
———
P(B)

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Q

Mutually exclusive

A

P(AnB) = 0

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Q

P(AuB)

A

P(A) + P(B) - P(AnB)

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Q

Independent conditions

A

P(AuB) = P(A) X P(B)

P(A|B) = P(A)

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Q

P(B|A) if you know P(A), P(B) and P(A|B)

A

P(A|B) X P(B)
——————
P(A)

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Q

P(A)’

A

1.00 - P(A)

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