Bayes’ Rule

• • P(A | B) = P(A Ù B) / P(B) Product Rule
  • P(A Ù B) = P(A | B) P(B)
  • P(A Ù B) = P(B | A) P(A)
  • P(A | B) = P(A) P(A | B) / P(B) Bayes’Rule
  • We will also use the notation:
    • P(A,B) º P(A Ù B)
    • P(A | B,C ) º P(A | B Ù C)

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