# Combination

In Glogpedia

by MinJeong
Last updated 7 years ago

Discipline:
Math
Subject:
Prob/Stat

FormulaA formula for the number of possible combinations of 'r' objects from a set of 'n' objects. This is written in any of the ways shown below.

In mathmatics, a combination is a way of selecting several things out of a larger group, where (unlike permutations) order does not matter.

Min Jeong Woo, Jun Bai Park, Constanza Aceves, and Renata Rodriguez

Honors Algebra II (P3)

All forms are read aloud "n choose r."

One Direction-Math Song

How many different committees of 4 students can be chosen from a group of 15?

Exmaple

Real life application

Surprisingly, it is really easy to find some real life applications of combination. Whenever we order something, we use combination. For example, 1. Selecting nominies for a council2. Selecting topping ingredients for pizza.3. Selecting student officers in a classroom.

C O M B I N A T I O N

BONUS!-What is the difference between combination and permutation?If the order doesn't matter, it is a Combination.If the order does matter it is a Permutation.