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Mathematics, 24.03.2021 08:00 Val03

La máquina de una fábrica de tornillos produce el 63% de la producción diaria mientras que la máquina b produce el 27% la máquina tiene una probabilidad del 1.5% de producir tornillos defectuosos la máquina b produce con 3% de defectuosos a) ¿cuál es la probabilidad de que al tomar un tornillo de la producción total y éste sea defectuoso?

b) ¿cuál es la probabilidad de que al tomar al azar un tornillo defectuoso éste haya sido producido por la máquina b?

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