Introductory Combinatorics
For Data Science, GRE, GMAT, GRE Math, DAT, OAT, and more!
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FREE PREVIEWBefore we begin...
How To Use This Course
The Multiplication Rule (aka the "Fundamental Counting Principle")
FREE PREVIEWMultiplication Principle Part 2 (Distinguishable And Indistinguishable Objects)
FREE PREVIEWMultiplication Rule Quiz
Permutations
FREE PREVIEWPermutation Problems!
Permutations Quiz
Multinomial
FREE PREVIEWMultinomial Quiz
Combinations
FREE PREVIEWCombinations Quiz
Multichoose (aka "Stars and Bars")
Multichoose 2 (More Practice)
Multichoose 3 (Integer Problem)
Bonus Problem (Integer Problem Again!)
Multichoose Quiz
A Binomial Identity for the Proof of the Principle of Inclusion/Exclusion (PIE) [May Be Skipped]
PIE
PIE 2 (General and Proof, informal)
Derangements
PIE Quiz
The Pigeonhole Principle
Challenge Problem 1 (Famous Ramsey)
Challenge Problem 2 (Integer Lattice Points)
Pigeonhole Quiz
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