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Mathematics, 28.01.2020 00:31 ariiii56

Ascientist discovers a fossil fragment that he believes is either some kind of tiger (with probability 1/3) or mammoth (with probability 2/3). to shed further light on this question, he conducts a test which has the property that for tigers, it will come out positive with probability 5/6 whereas for mammoths it will come out positive with probability just 1/3. suppose the test comes out negative. what is the probability, given the outcome of the test, that the fossil comes from a tiger

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