Question 257719
Prob both survive to 65: 8/10 * 2/3 =16/30=8/15
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Only the male will be alive: 2/3 * 2/10 = 4/30 = 2/15
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Only the female survives: 8/10 * 1/3 = 8/30 = 4/15
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At least one of the 2 will be alive: 8/15 + 4/15 + 2/15 = 14/15
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Ed