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Trustworthy people took the polygraph test

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Reference no: EM132039507

How do you solve this? The fbi kept records of people who were given polygraph tests and found that 15% of the trustworthy people fail the test. a. ten trustworthy people just took the polygraph test, what is the probability that all 10 pass? b. what is the probability that more than 2 of the 10 fail?

And also this based on that information...The FBI says that 500 trustworthy people took the polygraph test. The percentage of failure for trustworthy people is still 15%. What is the mean and standard deviation for this group?

Reference no: EM132039507

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