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# 11.8 probabilities of disjoint and overlapping events wiki

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• ### 11.8 probabilities of disjoint and overlapping events wiki

1. 1. 11.8 Probabilities of Disjoint and Overlapping Events April 26, 2011
2. 2. Disjoint Events or Mutually ExclusiveEvents: events that have no commonoutcomes.
3. 3. Disjoint Events or Mutually ExclusiveEvents: events that have no commonoutcomes. Overlapping Events: events that haveone or more outcomes in common.
4. 4. Example 1:
5. 5. Example 1:
6. 6. Example 1:
7. 7. Example 2:
8. 8. Example 2:
9. 9. Example 3:
10. 10. Example 3:
11. 11. Two events are complementaryevents if they are disjoint events and oneevent or the other must occur.
12. 12. Two events are complementaryevents if they are disjoint events and oneevent or the other must occur. The sum of the probabilities of t wo complementary events is 1.
13. 13. Two events are complementaryevents if they are disjoint events and oneevent or the other must occur. P(not A) = 1 - P(A) The sum of the probabilities of t wo complementary events is 1.
14. 14. Example 4:
15. 15. Example 4: