Use Bayes' Theorem to Find the Indicated Probability

question 142

Multiple Choice

Use Bayes' theorem to find the indicated probability.
-Some employers use lie detector tests to screen job applicants. Lie detector tests are not completely reliable. Suppose that in a lie detector test, 65% of lies are identified as lies and that 14% of true statements are also
Identified as lies.
A company gives its job applicants a polygraph test, asking "Did you tell the truth on your job application?".
Suppose that 93% of the job applicants tell the truth during the polygraph test. What is the probability that a
Person who fails the test was actually telling the truth?

• A) 0.349
• B) 0.259
• C) 0.741
• D) 0.14

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Definitions:

Social Responsibility

The obligation of individuals, organizations, and businesses to act in a way that benefits society at large.

Sewer Drains

Infrastructure designed to carry away waste water and storm water from urban and suburban areas to treatment facilities or natural outlets.

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Companies involved in the extraction, processing, and distribution of oil products.

Tangible Attributes

The physical characteristics of a product that can be perceived through the senses, such as size, weight, and texture.