This document discusses counting principles such as the sample space, fundamental counting principle, permutations, and combinations. It defines permutations as ordered arrangements and combinations as non-ordered arrangements. Permutations and combinations are two important counting principles used to calculate the number of possible outcomes.

1. Counting Principles
Sample Space, Fundamental
Counting Principle, Permutations,
Combinations

12. Permutation

15. Combination
Permutation VS Combination:
Permutation is ordered arrangement
Combination is non-ordered arrangement