Probability Rules

In this mission of this probability fundamentals course, you’ll learn about the fundamental rules of probability. You’ll learn concepts such as Sample Space, certain and impossible events, the addition rule, Venn diagrams, set notation, and more.

In probability, it’s helpful to visualize events using Venn diagrams. In this mission, you’ll see exactly why we visualize events using diagrams and why it makes everything easier. When discussing Venn diagrams, you will learn about mutually exclusive and mutually non-exclusive events, and how they play into assessing probability.

You’ll also learn about set notation, which is important because the outcomes of a random experiment are usually represented as a set

In this mission, you will come across Greek letters and other symbols. They may look intimidating, but don’t worry! Everything will be explained, and by the end of the mission you’ll be wielding them like a math whiz!


  • Learn about sample spaces
  • Learn how to read Venn diagrams
  • Learn about impssible and certain events
  • Learn about the addition rule
  • Learn how to use set notation

Lesson Outline

  1. Sets
  2. Venn Diagrams
  3. Unions and Intersection of Sets
  4. Mutually Exlusive Events
  5. The Addition Rule
  6. A More General Addition Rule
  7. Next Steps
  8. Takeaways

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