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🔍 PREVIEW MODE – Only you can see this. Back to Admin EduTek Lesson Notes Shop Print PDF Home › SS › Mathematics › Probability – Addition and Multiplication Rules SS 2 Probability – Addition and Multiplication Rules Mathematics SS 2 Third Term Introduction In probability, we often need to find the probability of combined events. There are two main rules for this: 📌 The Two Rules: Addition Rule: Used for events where we want the probability of A OR B occurring. Multiplication Rule: Used for event [Preview only]