Online College Courses for Credit

The Addition Rule

The Addition Rule

Author: Nalyna Tath

Use the rules of probability to compute probabilities of compound events in a uniform probability model. 

S-CP 7 : Apply the Addition Rule, and interpret the answer in terms of the model. 

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Try It

After you have completed the review and the quiz, 

please follow this link to GOOGLE FORM where you will need to create your own ADDITION RULE WORD PROBLEM.

Probability: Addition Rule

Source: Youtube: statslectures.


Concept to Know


For NON-MUTUALLY exclusive events:

P(A or B) = P (A) + P (B) - P (A and B)

For MUTUALLY exclusive events:

P(A or B) = P (A) + P (B)

TAKE A LOOK!!! Additional Examples