SOLUTION: a doctor claims to have discovered a cure for a disease. half of the people with disease have recovered without treatment. He treats 200 patients, 120 of whom recover. whats the p

Question 547241: a doctor claims to have discovered a cure for a disease. half of the people with disease have recovered without treatment. He treats 200 patients, 120 of whom recover. whats the probability that all 120 would have recovered?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a doctor claims to have discovered a cure for a disease. half of the people with disease have recovered without treatment. He treats 200 patients, 120 of whom recover. whats the probability that all 120 would have recovered?
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Binomial Problem with n = 200 and p(cure) = 1/2
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P(x = 120) = 200C120*(1/2)^120*(1/2)^80 = 0.0010
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Cheers,
Stan H.
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