Prob & Stats · Unit 1

Counting Principles

The multiplication and addition principles, complementary counting, and organized lists — how to count without counting.

Builds on

Nothing — the course starts here, from zero.

Lessons
  1. 01Organized Lists & Tree Diagrams
  2. 02The Multiplication Principle
  3. 03The Addition Principle & Case Work
  4. 04Counting with Restrictions
  5. 05Complementary Counting
  6. 06Overcounting & Inclusion-Exclusion
Ready to check yourself?