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Problema probabilidad examen de grado superior
 
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diona



Registrado: 27 Dic 2011
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MensajePublicado: Mar Dic 27, 2011 4:10 pm    Título del mensaje: Problema probabilidad examen de grado superior Responder citando

Hola a todos,
¿alguien me podria ayudar a resolver este problema? No sé si tengo que multiplicar las probabilidades o sumarlas...

En un edificio hay instalados dos sistemas independientes de seguridad contra incendios.
La probabilidad de que se activen si ocurre un incendio es de 0’93 y 0’98 respectivamente. En el caso de que ocurra un incendio, calcula la probabilidad de que:
a) No se active ningún sistema y se queme el edificio
b) Se active al menos un sistema

Gracias!!
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wnvl



Registrado: 29 Feb 2012
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MensajePublicado: Mie Feb 29, 2012 3:59 pm    Título del mensaje: Responder citando

a) No se active ningún sistema = (sistema 1 no se active) e (sistema 1 no se active)
=0’93 * 0’98 = ???

b) Se active al menos un sistema = 1 - (0’93 * 0’98) = ???
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diona



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MensajePublicado: Dom Mar 04, 2012 12:39 pm    Título del mensaje: Responder citando

Si no me equivoco, puede que las respuestas esten invertidas?

Muchas gracias por la ayuda!
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wnvl



Registrado: 29 Feb 2012
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MensajePublicado: Lun Mar 05, 2012 4:11 am    Título del mensaje: Responder citando

sorry

a) No se active ningún sistema = (sistema 1 no se active) e (sistema 1 no se active)
=(1-0’93) * (1-0’98) = ???

b) Se active al menos un sistema = 1 - (1-0’93) * (1-0’98)) = ???
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diona



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MensajePublicado: Mie Mar 07, 2012 9:06 pm    Título del mensaje: Responder citando

Muchas gracias de nuevo por tu ayuda!
;)
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judy9146



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MensajePublicado: Mie Oct 31, 2012 8:23 am    Título del mensaje: cheap designer handbags Responder citando

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MensajePublicado: Lun Ago 19, 2013 4:18 am    Título del mensaje: michael kors Responder citando

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