Lesson 75 – Combinations

Saxon Advanced Math

Permutation – has differed ordered set. Therefore order matter
Lesson 38 – Permutation Introduction;
Lesson 41.B – Permutation Notation
Lesson 45 – Conditional Permutations
Lesson 55 – Circular and Distinguishable Permutations

Combination – order is not considered. Need to divide by the ways the items could be ordered.