SOLUTION: Say that a randomly chosen individual can identify the professor with probability 0.47. What is the probability that, of 9 chosen people, exactly 7 people recognize the professor?

Question 664110: Say that a randomly chosen individual can identify the professor with probability 0.47. What is the probability that, of 9 chosen people, exactly 7 people recognize the professor?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Say that a randomly chosen individual can identify the professor with probability 0.47. What is the probability that, of 9 chosen people, exactly 7 people recognize the professor?
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Binomial Problem with n = 9 ; p(can ID)=0.47
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P(x = 7) = 9C7(0.47)^7*(0.53)^2 = binompdf(9,0.47,7) = 0.0512
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Cheers,
Stan H.
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