Use the following results from a test for marijuana use, which is provided by a certain drug testing cor 146 subjects with positive test results, there are 25 false positive results; among 151 negative results, false negative results. If one of the test subjects is randomly selected, find the probability that the sub negative or did not use marijuana. (Hint: Construct a table.) The probability that a randomly selected subject tested negative or did not use marijuana is (Do not round until the final answer. Then round to three decimal places as needed.)
Use the following results from a test for marijuana use, which is provided by a certain drug testing cor 146 subjects with positive test results, there are 25 false positive results; among 151 negative results, false negative results. If one of the test subjects is randomly selected, find the probability that the sub negative or did not use marijuana. (Hint: Construct a table.) The probability that a randomly selected subject tested negative or did not use marijuana is (Do not round until the final answer. Then round to three decimal places as needed.)
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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Contingency Table
Positive | Negative | Total | |
use marijuana | 121 | 5 | 126 |
did not use marijuana | 25 | 146 | 171 |
Total | 146 | 151 | 297 |
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