Dartmouth College
Dartmouth College: An Introduction to Probability
This site provides an introduction to probability book that is available for download. It also gives tips on how to teach and learn the concept of probability.
Khan Academy
Khan Academy: Probability: The Basics
Provides an introduction to probability. Includes examples, two videos, and links to additional resources, e.g., exercises to try. There are also problems and discussions of them in the Comments section.
Yale University
Yale New Haven Teachers Institute: Introduction to Mathematical Probability
This site gives an overview of probability, including example problems and a reading list. Exhaustive and detailed, this should help dramatically with students looking to study probability.
Shodor Education Foundation
Shodor Interactivate: Lesson: Ideas That Lead to Probability
This lesson plan sets the ground work for an introduction to and then exploring the concepts that are the foundation for probability. Lots of resources are available for teachers and young scholars at this website.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math; Introduction to Probability
A good introduction to concepts in probability, this page also gives a great definition of sample space. Scroll down halfway to find sample space.
Estrella Mountain Community College
Estrella Mountian College: Introduction to Genetics
This site explains genetic beliefs before and after Mendel, and also includes a section on Mendel himself and his experiments, entitled, "The Monk and his Peas".
Yale University
An Introduction to Mathematical Probability
This site gives a very brief definition of independent events. It provides a few example problems for further understanding.
Shodor Education Foundation
Shodor Interactivate: Lesson: Probability and Geometry
The Shodor Education Foundation provides this lesson plan to give middle schoolers an opportunity to connect probabilty and geometry. Students learn how to calculate probability, use geometry to solve probabilty problems, and, as an...