Question 10 **Title: Evaluating the Accuracy of Drug Test Results****Text:**Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 147 subjects with positive test results, there are 23 false positive results; among 154 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.)---**Question:**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.)---**Analysis:**To solve this problem, we can use a table to organize the given information and then calculate the required probability.First, let’s break down the information:- Total subjects who tested positive: 147 - False positives among them: 23 - True positives (actual marijuana users) = 147 - 23 = 124 - Total subjects who tested negative: 154 - False negatives among them: 4 - True negatives (actual non-users) = 154 - 4 = 150So, the total number of subjects:- Total positive results = 147- Total negative results = 154- Total subjects = 147 + 154 = 301To find the probability that a randomly selected subject tested negative or did not use marijuana, we need to consider:- True negatives (150)- False negatives (4)- Subjects who do not use marijuana = true negatives + false positives = 150 + 23 = 173Events (subject tested negative or did not use marijuana):- Total good outcomes (test negative or did not use marijuana) = true negatives + false negatives + false positives = 150 + 23 + 4 = 177Finally, the probability is calculated as follows:\[ \text{Probability} = \frac{\text{Total good outcomes}}{\text{Total subjects}} = \frac{177}{301} \]Let's calculate the value:\[ \text{Probability} = \frac{177}{301} \approx 0.588 \]Hence, the probability that a randomly selected subject tested negative or did not use marijuana is approximately 0.588 (rounded to three decimal places).

The question is about probabilityGiven :Total no. of positive test results = 147No. of false…

Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 147 subjects with positive test results, there are 23 false positive results; among 154 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.) 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.)