Attorneys often use lie detectors to test if a suspect is speaking the truth or not. It is found that the lie detector gives a positive result 64% of the time. The suspect is found to lie for 81% of the positive results and 15% of the negative results. a. If a suspect is actually lying, what is the probability that the lie detector gives a positive test result? Answer in exact fraction, or rounded to at least 4 decimal places b. If the suspect is not lying, what is the probability that the lie detector gives a negative result? Answer in exact fraction, or rounded to at least 4 decimal places
Attorneys often use lie detectors to test if a suspect is speaking the truth or not. It is found that the lie detector gives a positive result 64% of the time. The suspect is found to lie for 81% of the positive results and 15% of the negative results. a. If a suspect is actually lying, what is the probability that the lie detector gives a positive test result? Answer in exact fraction, or rounded to at least 4 decimal places b. If the suspect is not lying, what is the probability that the lie detector gives a negative result? Answer in exact fraction, or rounded to at least 4 decimal places
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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![Attorneys often use lie detectors to test if a suspect is speaking the truth or not. It is found that the lie detector gives a positive result 64% of the time. The
suspect is found to lie for 81% of the positive results and 15% of the negative results.
a. If a suspect is actually lying, what is the probability that the lie detector gives a positive test result?
Answer in exact fraction, or rounded to at least 4 decimal places
b. If the suspect is not lying, what is the probability that the lie detector gives a negative result?
Answer in exact fraction, or rounded to at least 4 decimal places](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7f6f5f0d-1365-4765-8c17-23310cc33b0a%2F152d1f68-5085-41e9-8433-9538fd8a5320%2Fclkcezq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Attorneys often use lie detectors to test if a suspect is speaking the truth or not. It is found that the lie detector gives a positive result 64% of the time. The
suspect is found to lie for 81% of the positive results and 15% of the negative results.
a. If a suspect is actually lying, what is the probability that the lie detector gives a positive test result?
Answer in exact fraction, or rounded to at least 4 decimal places
b. If the suspect is not lying, what is the probability that the lie detector gives a negative result?
Answer in exact fraction, or rounded to at least 4 decimal places
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