CK-12 Foundation
Ck 12: Probabilities of Compound Events
[Free Registration/Login may be required to access all resource tools.] A detailed explanation of how to use tree diagrams and tables to find the probability of compound events. Also looks at dependent events. Includes example problems...
McGraw Hill
Glencoe Mathematics: Online Study Tools: Probability of Compound Events
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of event probability.
Khan Academy
Khan Academy: Practice: Probabilities of Compound Events
Practice solving questions about the probabilities of compound events. Includes hints.
Khan Academy
Khan Academy: Probabilities of Compound Events
Multiple-choice problems practicing probabilities of compound events.