a. How many subjects were included in the study? The total number of subjects in the study was 301. b. How many subjects did not use marijuana? A total of 171 subjects did not use marijuana. c. What...

Extracted text: a. How many subjects were included in the study? The total number of subjects in the study was 301. b. How many subjects did not use marijuana? A total of 171 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 0.568 (Do not round until the final answer. Then round to three decimal places as needed.)


Extracted text: Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 149 subjects with positive test results, there are 20 false positive results. Among 151 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.