Question Help * Use the following results from a test for marijuana use, which i

Question

Question Help * Use the following results from a test for marijuana use, which is prowded by a certain drug testing company Among 145 subjects with positive test results, there are 25 talse positive results. Among 154 negative results, there are 3 false negative results. Complete parts (a) through (c) Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was b. How many subjects did not use manijuana? A total of subjects did not use marijuana c. What is the probability that a randomly selected subject did not use marijuana? The probability that a randomly selected subject did not use marijuana is Do not round until the final answer. Then round to three decimal places as needed.)

Explanation / Answer

A( Total no of subject included in the study = 145 + 154 = 299

B) The no of subject did not use = 25 + 151 = 176

C) P(a selected subject did not use) = 176 / 299 = 0.589

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