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The Counting & Probability videos are created to follow the Introduction to Counting & Probability book, featuring AoPS Founder Richard Ruscyzk.

Here is a list of all of the videos.


Counting is ArithmeticEdit

Basic Counting TechniquesEdit

Correcting for Over-countingEdit

Committees and CombinationsEdit

Combinations ExtendedEdit

Some Harder Counting ProblemsEdit

Introduction to ProbabilityEdit

Basic Probability TechniquesEdit

Think About It!Edit

Geometric ProbabilityEdit