Chapter 17.4

Permutation vs. Combination


What You'll Learn

Distinguish between permutation and combination problems based on order importance
Apply permutation formulas when the order of selection matters
Apply combination formulas when the order of selection does not matter
Calculate permutations using nPr notation and factorial expressions
Calculate combinations using nCr notation and factorial expressions
Verify results using tree diagrams and fundamental counting principle

What You'll Practice

1

Determining whether order matters in prize distribution scenarios

2

Calculating permutations for arranging different prizes among students

3

Calculating combinations for distributing identical prizes

4

Using calculator functions to compute nPr and nCr values

5

Applying factorial notation to simplify counting expressions

Why This Matters

Understanding permutation vs. combination is essential for probability, statistics, and advanced counting problems. You'll use these concepts in fields like computer science, data analysis, and any career involving decision-making with multiple options.

This Unit Includes

1 Video lesson
Practice exercises
Learning resources

Skills

Permutation
Combination
Counting Principle
Factorial
Order Importance
Probability
nPr and nCr
Pug instructor