Question 4 Police often set up sobriety checkpoints-roadblocks where drivers are asked a few brief questions to allow the officer to ju drivers are released to go on their way. Otherwise, drivers are detained for a Breathalyzer test that will determine whether or make the right decision 80% of the time. Suppose the police operate a sobriety checkpoint after 9:00 p.m. on a Saturday nig Complete parts a) through d) below. a) A statistics student is stopped at the checkpoint and, of course, has not been drinking. What is the probability that the statistics student is detained for further testing? The probability that the statistics student is detained for further testing is Answer 0.235 b) What is the probability that any given driver will be detained? The probability that any given driver will be detained is Answer 0.280 c) What is the probability that a driver who is detained has actually been drinking? The probability that a driver who is detained has actually been drinking is Answer 0.429 d) What is the probability that a driver who was released had actually been drinking? The probability that a driver who was released had actually been drinking is Answer 0.20 Question 7 A 2015 study conducted by the National Center for Health Statistics found that 51% of U.S. households had no landline serv dialing to households via landlines. Researchers pick eleven U.S. households at random. Complete parts a through c. a) What is the probability that all eleven of them have a landline? Answer 0.0004 b) What is the probability that at least one of them does not have a landline? Answer 0.9996 c) What is the probability that at least one of them does have a landline? Answer 0.9994 Show work for question 4 and question 7 the answers I picked. Thanks you./n Instructions Need to show the detailed solution for the answers shown according to the questions