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# Counting Techniques

## Number of ways to choose (and potentially arrange) k objects from a group of n objects.

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.

## Counting with Permutations and Combinations

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## Permutations and Combinations

Use permutations and combinations to compute probabilities of compound events and solve problems.
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## Counting with Permutations and Combinations

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## Counting with Permutations and Combinations

by EPISD Precalculus Team //at grade
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## Counting Forward Activity-Unit 1

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## Ten Frames Activity-Unit 6

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• PLIX

## Counting Techniques: Permutations and Combinations

Counting Techniques Interactive
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• Video

## Combinations and Permutations Practice Problems

by Meera Santhanam //basic
This video walks you through various combinations and permutation word problems and explains how to solve them.
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• Real World Application

## Checkmate!

Find out why computer programmers are able to design computers that can beat the world's best chess players.
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• Study Guide

## Counting with Permutations and Combinations

by Rayna Schlossberg //basic
Use permutations and combinations to determine the number of possibilities in a given situation.
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