When I read the free newspaper on the bus this morning, I noticed a remarkable claim for the contraceptive pill:
"Women who take the contraceptive are 12% less likely to die compared with those who have never taken it."
Assuming that all non users of the pill eventually die, the probability of death in their case is 1.
That gives the probability of a pill taker dying as 0.88, with probability of immortality 0.12
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