Refer to the Table Which Summarizes the Results of Testing

question 63

Multiple Choice

Refer to the table which summarizes the results of testing for a certain disease. $$\begin{array} { l c c } & \begin{array} { c } \text { Positive Test } \\\text { Result }\end{array} & \begin{array} { c } \text { Negative Test } \\\text { Result }\end{array} \\\text { Subject has the disease } & 111 & 4 \\\text { Subject does not have the disease } & 11 & 172\end{array}$$ If one of the results is randomly selected, what is the probability that it is a false negative (test indicates the person does not have the disease when in fact they do) ? What does this probability suggest about the accuracy of the test?

• A) 0.0369; The probability of this error is low so the test is fairly accurate.
• B) 0.0348; The probability of this error is low so the test is fairly accurate.
• C) 0.0134; The probability of this error is low so the test is fairly accurate.
• D) 0.591; The probability of this error is high so the test is not very accurate.

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Definitions:

Permanent Tracks

Fixed pathways or routes that remain in a constant location over time, often referring to those used in transportation or infrastructure.

Rolling Shelves

Storage units mounted on tracks that allow them to be moved laterally, optimizing space usage and access.

Shelf Filing

A method of organizing files and documents on shelves in an orderly fashion, often used in offices and libraries for easy access and retrieval.

Out Guide

A marker made of stiff material and used as a placeholder when a file is taken out of a filing system.