Lessons

Use the Addition Rule to calculate the probability of disjoint event A or B
In this lesson you will learn how to calculate the probability of disjoint event A or B by using the Addition Rule.
Resources
Apply the Addition Rule, P(A or B) = P(A) + P(B) – P(A and B), and interpret the answer in terms of the model.
In this lesson you will learn how to calculate the probability of disjoint event A or B by using the Addition Rule.