Answer: Car Failures. In Exercises 1922, refer to the
Chapter 5, Problem 21(choose chapter or problem)
Car Failures. In Exercises 1922, refer to the accompanyingtable, which describes results of roadworthiness tests of Ford Focuscars that are 3 years old (based on data from the Departmentof Transportation). The random variable x represents the numberof cars that failed among six that were tested for roadworthiness. x P(x)0 0.3771 0.3992 0.1763 0.0414 0.0055 0+6 0+ Using Probabilities for Unusual Eventsa. Find the probability of getting exactly three cars that fail among six cars tested.b. Find the probability of getting three or more cars that fail among six cars tested.c. Which probability is relevant for determining whether three is an unusually high numberof failures among six cars tested: the result from part (a) or part (b)?d. Is three an unusually high number of failures? Why or why not?
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