Basic Statistics I - Solved Quiz 3 - Fall 2010 | MATH 1020, Quizzes of Statistics

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VL . 25 Poor Palfrey Statistics 25 Point Quiz March 18, 2010 Name 1. Police response lime lo an emergency call is the time difference between the time the call is first received by the dispatcher and the time a patrol car radios that it has arrived at the scene. Over a long period of time it has been determined that the police response time has a normal distribution with mean 8 minutes and standard deviation 2 minutes. For a randomly received emergency call, what is the ey probability that the response time will be _ (12 points) a. between Sand 10 minutes? . 74S b. ‘more than 6 minutes? « ‘ 2. Over the years it has been observed that of all the lawyers who take the Ohio state bar exam, only 60% pass. Suppose that this year 800 lawyers are going to take the Ohio bar exam, What is the probability that between 470 and 500 pass?_°- ORNS yo"TO (13 Points) oN plamex & xe N6%.S-7 7° Cy