a. How many subjects were included in the study?

Add the total number of subjects who tested positive to the total number of subjects who tested negative.

b. How many subjects did not use marijuana?Two groups of subjects did not use marijuana. The first group is subjects with a true negative test result. The second group is subjects with a false positive test result. Find the sum of these two groups.

c. What is the probability that a randomly selected subject did not use marijuana?Divide the total number of subjects that did not use marijuana by the total number of subjects in the study to find the probability that a randomly selected subject did not use marijuana, P(did not use marijuana), rounding to three decimal places.

Use the data in the following table, which lists drivethru order accuracy at popular fast food chains. Assume that orders are randomly selected from Those included in the table. Drive-thru Restaurant % u-:--1- Order women-rate .1. Assume that the selections are made with replacement Are the events independent? The probability is . The events T independent. (Do not round until the nal answer. Round to four decimal places as needed.) Use the data in the following table, which lists drivethru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drivethru Restaurant l3 Order Accurate 3'12 26? 234 14!] Order Not Accurate 31 56 3t] 16 n:- a. Assume that the selections are made with replacement. Are the events independent? The probability of getting two orders from Restaurant D is D. The events E independent because choosing the rst order I: the probability of the choice of the second order. (Do not round until the nal answer. Round to tour decimal places as needed.) Use the data in the following table, which lists drive-Thru order accuracy at popular fast food chains. Assume that orders are randomly selected from Those included in the able. Drivethru Restau rant g A B C D Order Accurate 32]Ir 2?? 24? 149 Order Not Accurate 34 Bi] 33 13 The probability of getting an order from Restaurant A or an order That is accurate is (Round to three decimal places as needed.) 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 30 false positive results.Among 154 negative results. there are 2 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How manyr subjects were included in the study? The total number of subjects in the study was 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 30 false positive results. Among 154 negative results, there are 2 false negative results. Complete parts (a) through [c]. {Hint Construct a table} ..... 1. a. How manyI subjects were included in the study? The total number of subjects in the study was