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# Combinations

## The number of possible groupings when order does not matter.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Combinations

by CK-12 //basic
Use the formula for combinations.
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## Combinations

Given a set, learn how to calculate its number of combinations.
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## Combinations

Learn to find all possible combinations.
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## Combinations

by CK-12 //basic
Learn how to distinguish between permutations and combinations.
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## Combinations

Given a set, learn how to calculate its number of combinations.
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## Recognizing Combinations

Learn to recognize combinations in situations where order does not matter.
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## Define and Apply Combinations

This lesson covers how to define and calculate combinations of objects and recognize the difference between a combination and a permutation.
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## Calculating Combinations

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## Combinations

Given a set, learn how to calculate its number of combinations.
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## Combinations

Learn to find all possible combinations.
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## Combinations

Given a set, learn how to calculate its number of combinations.
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## Combinations

by Millard Public School Omaha, NE (www.mpsomaha.org) //at grade
Given a set, learn how to calculate its number of combinations.
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• PLIX

## Making the Team

Combinations Interactive
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• Video

## Combinations Principles

by CK-12 //basic
This video gives more detail about the mathematical principles presented in Combinations.
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• Video

## Combinations Examples

by CK-12 //basic
This video shows how to work step-by-step through one or more of the examples in Combinations.
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• Video

## Combinations

by CK-12 //basic
Introduces the formula for combinations in order to find how many subsets of a certain number we can take out of a set of a given number.
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• Video

## Combinations - Example 1

by CK-12 //basic
Word Problems - Find the number of combinations of n elements taken r at a time
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• Video

## Combinations: An Introduction

by CK-12 //basic
Introduces combinations and explains how to evaluate combinations as well as solve counting problems using combinations.
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• Video

## Combinations - Example 2

by CK-12 //basic
Finding the Number of Combinations Given One Event
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• Video

## Combinations: A Sample Application

This video demonstrates a sample use of combinations.
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• Video

## Combinations - Example 3

by CK-12 //basic
Multiplying Combinations Given Multiple Events
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• Video

## Combinations: An Explanation of the Concept

This video provides an explanation of the concept of combinations.
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• Lesson Plan

## Combinations Lesson Plan

by CK-12 //basic
This lesson plan covers Combinations and includes Teaching Tips, Common Errors, Differentiated Instruction, Enrichment, and Problem Solving.
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## Combinations Quiz

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• Critical Thinking

## Combinations Discussion Questions

A list of student-submitted discussion questions for Combinations.
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• Real World Application

## Shuffling Music and Combinations

A demonstration of combinations using the example of shuffling songs on an mp3 player.
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• Real World Application

## Blue Eyes or Brown Eyes?

You can calculate the chances of you having your eye color with a bit of combinations and genetics knowledge.
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• Real World Application

## Combinations

Students will analyze their chances of winning the lottery, using Combinations.
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• Real World Application

## Betting on Combinations

Learn how combinations factor into the game of poker.
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• Study Guide

## Probability Study Guide

This study guide reviews the probability of simple events, non-simple events, complementary events, compound events, conditional events, independent events, and mutually exclusive events. It also looks at tree diagrams and counting, combination, and permutation.
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• Study Guide

## Permutations and Combinations

covers permutations and combinations
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## Combinations and Permutations Jeopardy

by Kyle Bardman //basic
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• Flashcards

## Combinations

by Ellaine Chou //basic
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• Flashcards

## Define and Apply Combinations

by Kyle Bardman //basic
These flashcards will help you better understand Algebra II with Trigonometry Concepts.
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• Flashcards

## Recognizing Combinations

by Kyle Bardman //basic