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
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question
need the solve asap
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
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
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON