5 PRACTICA POISSON XS0217 I-2015 - UNIVERSIDAD DE COSTA...

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UNIVERSIDAD DE COSTA RICA ESCUELA DE ESTADISTICA I CICLO 2015 XS-0217 PROBABILIDAD E INFERENCIA ESTADISTICA Prof.: Lic. Adrián G. Vargas Coto, M.B.A. PRACTICA DISTRIBUCION DE PROBABILIDAD POISSON 1. El encargado de atender los accidentes laborales en la industria textil ha informado que en promedio se dan 8 accidentes de este tipo por mes. Calcule la probabilidad de que en esta industria sucedan: a. Exactamente 7 accidentes en un mes cualquiera R/ 0.140 b. Por lo menos 3 accidentes en un periodo de 15 días R/ 0.762 c. Menos de cuatro accidentes en un período de 4 semanas R/ 0.042 d. Menos de 5 accidentes en dos meses consecutivos R/ 0.000 2. Cada día atracan dos barcos en promedio, en un determinado muelle. Cuál es la probabilidad de que: a. En un día aleatoriamente seleccionado atraquen 4 o menos barcos R/ 0.947 b. Exactamente dos barcos atraquen cada 4 días R/ 0.146 c. Lleguen entre 3 y 7 (inclusive ambos) barcos en tres días R/ 0.682 3. En un pequeño supermercado se ha observado que el número promedio de clientes por hora en la caja registradora es de 20. Halle la probabilidad de que:
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  • Spring '16
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