Question: 1.La probabilidad de que cierto tipo de transistor dure ms de 2 mil horas de uso es 0.6. Si se seleccionan 100 transistores al azar

1.La probabilidad de que cierto tipo de transistor dure ms de 2 mil horas de uso es 0.6. Si se seleccionan 100 transistores al azar Cul es la probabilidad de que:

a.No menos de 60 ni ms de 70 duren ms de 2 mil horas?

b.Al menos 50 duren ms de 2 mil horas?

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