SOLUTION: 30% population of a village has a certain disease.If people in the village are selected successively at random, what is the probability that the 3th person selected is the first pe
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Question 219915: 30% population of a village has a certain disease.If people in the village are selected successively at random, what is the probability that the 3th person selected is the first person with the disease? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! 30% population of a village has a certain disease.If people in the village are selected successively at random, what is the probability that the 3th person selected is the first person with the disease?
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P(3rd first diseased) = (0.7)^2(0.3) = 0.147
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Cheers,
Stan H.
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