Actually use drugs 11 Do not use drugs Total Test "positive" Test "negative" 2 13 4 370 374 Total 15 372 387
Actually use drugs 11 Do not use drugs Total Test "positive" Test "negative" 2 13 4 370 374 Total 15 372 387
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
All new interviewees at a company must submit to drug testing. Anyone who tests positive for illegal drugs is not hired and banned from applying again. However, sometimes prescription medications in the bloodstream are mistaken for illegal drugs. The table below summarizes the results for interviewees in 2019. You must show your work on your own paper to receive credit. Round all answers to the nearest tenth of a percent.
What percent of all interviewees for the company test negative?
What percent of people who test positive are actually drug users?
What percent of drug users test positive?

Transcribed Image Text:The table represents the results of a drug test and categorizes individuals based on their actual drug use and their test outcomes. The table is divided into two main sections: those who actually use drugs and those who do not.
### Table Breakdown:
- **Rows:**
- **Test "positive"**
- **Actually use drugs:** 11
- **Do not use drugs:** 2
- **Total:** 13
- **Test "negative"**
- **Actually use drugs:** 4
- **Do not use drugs:** 370
- **Total:** 374
- **Columns:**
- **Actually use drugs:** Total of 15 individuals.
- **Do not use drugs:** Total of 372 individuals.
- **Overall Total:** 387 individuals.
This table highlights the accuracy and error rates in drug testing by showing the number of true positives, false positives, true negatives, and false negatives.
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