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Use the following results from a test for marijuana​ use, which is provided by a certain drug testing company. Among 145 subjects with positive test​ results, there are 21 false positive​ results; among 156 negative​ results, there are 4 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.)

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Part 1
The probability that a randomly selected subject tested negative or did not use marijuana is enter your response here.
​(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-example-1
User Armando
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Answer:

The probability that a randomly selected subject tested negative or did not use marijuana is 0.589.

Explanation:

User Karim Bahgat
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