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Addition Rule for Probability

Videos and lessons to help High School students learn how to 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.

Here we shall cover:

  • Define the probability of event (A or B) as the probability of their union. 
  • Understand and use the formula P(A or B) = P(A) + P(B) ֠P(A and B).

Common Core: HSS-CP.B.7

Related Topics:
Common Core (Statistics & Probability)

Common Core for Mathematics

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Venn diagrams and the addition rule for probability.

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How to find the probability of mutually exclusive events and non mutually exclusive events using the sample space for cards and dice.

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Demonstrates a few examples of how the General Addition Rule is used.

Addition Rule of Probability.

The Addition Rule for Probability
Finding probabilities with the addition rule.

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