In this video I work through how to easily and generally determine the number of ways to rearrange or permute a set of data containing n total objects. In doing so I introduce the idea of a factorial. We use factorials more generally to help us count permutations.
HA2 12.1.2, Counting permutations of n objects, and factorials - YouTube | |
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Education | Upload TimePublished on 13 Jan 2015 |
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