65% of people who have taken this simple logic test have failed. Can you be among the 35%? "What Does Mary Do?" http://bit.ly/ZH99xh
@tkmlac If we're talking aggregates, then that sort of biographical/demographic stuff does actually make a difference in terms of likelihood
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@tkmlac Yup. But the logic is ensuring that the judgement you make doesn't involve a logical contradiction.
End of conversation
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