Math Problem Statement
Se dispone de N urnas y de N bolas; urnas y bolas están numeradas de 1 a N. Se introduce al azar una bola dentro de cada urna. ¿Cuál es la probabilidad de obtener al menos una coincidencia de números entre la bola y la urna que la contiene?
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Factorials
Combinatorics
Formulas
Formula for factorial: N!
Formula for derangements: !N = N! * sum((-1)^k / k!)
Theorems
Inclusion-Exclusion Principle
Suitable Grade Level
Advanced High School / Undergraduate Level
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