Use the following results from a test for marijuana​ use, which is provided by a certain drug testing company. Among141 subjects with positive test​ results, there are 23 false positive​ results; among 154 negative​ results, there are 44 false negative results. If one of the test subjects is randomly​ selected, find the probability that the subject tested 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 ?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Use the following results from a test for marijuana​ use, which is provided by a certain drug testing company. Among141 subjects with positive test​ results, there are 23 false positive​ results; among 154 negative​ results, there are 44 false negative results. If one of the test subjects is randomly​ selected, find the probability that the subject tested 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 ?

 

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