Respostas

2015-10-28T21:19:03-02:00
a) P (somente o marido) = 1/4*3/5 = 3/20
b) P (somente a mulher) = 2/5*3/4 = 6/20
c) P (ambos) = 3/4*3/5 = 9/20 
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