National Security Agency
It's Probably Probable
Learners make predictions and draw conclusions from given information as they learn the meaning of probability in this vocabulary-rich, integrated activity that presents a variety of teaching strategies to motivate and reach...
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...
Texas Education Agency
Texas Gateway: Introduction to Probability
This activity provides the opportunity to explore the difference between finding the probability of independent events and dependent events. It also addresses how to use a tree diagram when calculating conditional probabilities.
CK-12 Foundation
Ck 12: Probability: Additive and Multiplicative Rules for Probability
[Free Registration/Login may be required to access all resource tools.] Find the probability of a specified outcome using tree diagrams.