# Factorials and Combinations

## Choosing one or more objects from a set when order doesn't 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.

## Factorials and Combinations

A review of factorials and combinations.
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## Factorials and Combinations

A review of factorials and combinations
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• Video

## Permutations and Combinations 3

Goes through several examples of permutations and combinations.
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• Study Guide

## Combinations and the Binomial Theorem

by Rayna Schlossberg //basic
Review factorials and combinations, explore Pascal's Triangle and the Binomial Theorem.
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