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En una urna hay 4 canicas blancas y 3 negras si aleatoriamente se extraen 2 canicas una después de la otra sin regresarlas a la urna cuál es la probabilidad que sea la primera blanca y la segunda negra
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En una urna hay 4 canicas blancas y 3 negras si aleatoriamente se extraen 2 canicas una después de la otra sin regresarlas a la urna cuál es la probabilidad que sea la primera blanca y la segunda negra

User Aditya Santoso
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I can't understand

Explanation:

please translate to english

User Thsorens
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