A New Assay Is Used to Test 120 Samples from Patients

question 21

Multiple Choice

A new assay is used to test 120 samples from patients with a clinically confirmed diagnosis of the relevant infection and 50 samples from healthy control subjects.The test results were positive for 90 of the infected patients and positive for 10 of the healthy controls.
-Calculate the positive predictive value of the assay.

• A)57%
• B)75%
• C)80%
• D)90%

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Definitions:

Remote Server

A remote server refers to a server that is accessed over a network or the Internet, rather than being located within the user's local environment.

Internal Storage

Refers to the memory space within a device, such as a computer, phone, or tablet, that is used to store applications, files, and data.

Operating System

The software that manages hardware and software resources on a computer and provides common services for computer programs.

External Storage

Storage devices not housed within the computer's main case, such as USB drives, external hard drives, or cloud storage, used for additional data storage.