The probability that a man will live 10 more years, is $\frac{1}{4}$ and the probability that his wi

Question

The probability that a man will live 10 more years, is $\frac{1}{4}$ and the probability that his wife will live 10 more years, is $\frac{1}{3}$. Then the probability that none of them will be alive after 10 years is

Professor PC Thomas Classes · Answer

Mutually exclusive bounding implies combined negation matches $(1 - 1/4) 	imes (1 - 1/3) = 1/2$.