Calculating the Probability of Non-Disjoint Events: Addition Rule

This lesson teaches how to calculate the probability of non-disjoint events using the addition rule. It explains the difference between disjoint and non-disjoint events, highlighting common mistakes in probability calculations. The lesson provides examples to illustrate the correct method, emphasizing the need to subtract the intersection probability when events are not disjoint.

Provide an example of two events that are not disjoint and explain why.

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What is the addition rule formula for non-disjoint events?

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How would you find the probability of a randomly selected household owning a dog or cat?

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