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Probability and Statistics I: A Gentle Introduction to Probability - 6 본문

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Probability and Statistics I: A Gentle Introduction to Probability - 6

LeoBehindK 2023. 12. 30. 01:14
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Counting Techniques: Permutations

Permutation 정의

n개의 기호를 어떤 순서에 따라 배열한 것을 Permutation이라고 한다.

number of permutations of n things taken r-at-a-time

n개 중 r개를 순서에 따라 고르는 것을 Pn,r로 표현한다.

Pn,r 증명 과정

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