If the probability that a man of 25 will survive his 50th birthday is .742, and the

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If the probability that a man of 25 will survive his 50th birthday is .742, and the probability that a woman of 22 will survive her 47th birthday is .801, and such a man and woman marry, what is the probability 

(a) That at least one of them lives at least another 25 years? 

(b) That only one of them lives at least another 25 years?

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Introduction To Logic

ISBN: 9781138500860

15th Edition

Authors: Irving M. Copi, Carl Cohen, Victor Rodych

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