Probability

Probability

1. Intersection

   • P(A∩B)

2. All of A and all of B

   • P(AUB)

3. Not A

   • P(A')

4. Corresponding Probabilities

   • 1-P(A)=P(A')

5. The Addition Rule

   • P(AUB)=P(A)+P(B)
     • Mutually Exclusive Events
   • P(AUB)=P(A)+P(B)=P(A∩B)

6. The Multiplication Rule

   • P(A∩B)=P(A)xP(B)
     • Independent Events
   • P(A∩B)=P(A)xP(B/A)

7. Always minus the intersection from the total probabilities

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