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Find Probabilities of Disjoint and Overlapping Events

Find Probabilities of Disjoint and Overlapping Events. Section 10.4. Objectives:. Find probabilities of compound events. Key Vocabulary:. Compound event Overlapping events Disjoint or mutually exclusive events. Probability.

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Find Probabilities of Disjoint and Overlapping Events

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  1. Find Probabilities of Disjoint and Overlapping Events Section 10.4

  2. Objectives: • Find probabilities of compound events

  3. Key Vocabulary: • Compound event • Overlapping events • Disjoint or mutually exclusive events

  4. Probability When you consider all the outcomes for either of two events A and B, you form the union of A and B. When you consider only the outcomes shared by both A and B, you form the intersection of A and B. The union or intersection of two events is called a compound event. .

  5. Probability of Compound Events

  6. Example 1: A card is randomly selected from a standard deck of 52 cards. What is the probability that it is a 10 or a face card?

  7. Example 2:

  8. Example 3: Out of 200 students in a senior class, 113 students are either varsity athletes or on the honor roll. There are 74 seniors who are varsity athletes and 51 seniors who are on the honor roll. What is the probability that a randomly selected senior is both a varsity athlete and on the honor roll?

  9. #1: A card is randomly selected from a standard deck of 52 cards. Find the probability of the given event. Selecting an ace or an eight.

  10. #2: A card is randomly selected from a standard deck of 52 cards. Find the probability of the given event. Selecting a ten or a diamond.

  11. Probability of the Complement

  12. Example 4: When two six-sided dice are rolled, there are 36 possible outcomes, as shown. Find the probability of the given event. • The sum is not 6. • The sum is less than or equal to 9.

  13. Example 5: A restaurant gives a free fortune cookie to every guest. The restaurant claims there are 500 different messages hidden inside the fortune cookies. What is the probability that a group of 5 people receive at least 2 fortune cookies with the same message inside?

  14. #4: Find P(Ā).

  15. #5: Find P(Ā).

  16. #6: Find P(Ā).

  17. #7: Find P(Ā).

  18. Homework Assignment Page 710 #4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 32, 36, 38, 42, 44, 46, 62, 64

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