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Math5_Probability_-The-Addition-Rule_104010.pptx
The document discusses the Addition Rule of probability which states that for any two events A and B, the probability that either A or B occurs is the sum of the individual probabilities of each event minus their intersection. It also discusses mutually exclusive events, where the probability of both events occurring is 0. The Addition Rule is a fundamental concept in probability theory used to calculate the probability of combined events.
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Math5_Probability_-The-Addition-Rule_104010.pptx
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- 2. The Addition Rule MutuallyExclusive Events
- 4. The Addition Rule TheAddition Rule
- 8. The Addition Rule ASummary of Probability
Editor's Notes
- #3 Mutually Exclusive Events Last topic, you learned how to find the probability of two events, A and B, occurring in sequence. Such probabilities are denoted by P(A and B). In this topic, you will learn how to find the probability that at least one of two events will occur. Probabilities such as these are denoted by P(A or B) and depend on whether the events are mutually exclusive.
- #5 In words, to find the probability that one event or the other will occur, add the individual probabilities of each event and subtract the probability that they both occur. As shown in the Venn diagram at the left, subtracting P1A and B2 avoids double counting the probability of outcomes that occur in both A and B.