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# Answer: Car Failures. In Exercises 1922, refer to the accompanying table, which

ISBN: 9780321836960 18

## Solution for problem 22 Chapter 5-2

Elementary Statistics | 12th Edition

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Problem 22

Car Failures. In Exercises 1922, refer to the accompanying table, which describes results of roadworthiness tests of Ford Focus cars that are 3 years old (based on data from the Department of Transportation). The random variable x represents the number of cars that failed among six that were tested for roadworthiness. x P(x) 0 0.377 1 0.399 2 0.176 3 0.041 4 0.005 5 0 + 6 0 + Using Probabilities for Unusual Eventsa. Find the probability of getting exactly one car that fails among six cars tested.b. Find the probability of getting one or fewer cars that fail among six cars tested.c. Which probability is relevant for determining whether one is an unusually low number of cars that fail among six cars tested: the result from part (a)or part (b)?d. Is one an unusually low number of cars that fail among six cars tested? Why or why not?

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Chapter 2 Section 2.2  Frequency Distribution: Shows how data are parted within different categories(classes)  Lower class Limits: the smallest values in the different classes  Ex: Class interval: 10­19; 26­30; 80­100 Lower Class Limits: 10, 26, and 80  Upper class Limits: the largest values in the different classes....

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##### ISBN: 9780321836960

Elementary Statistics was written by and is associated to the ISBN: 9780321836960. The answer to “Car Failures. In Exercises 1922, refer to the accompanying table, which describes results of roadworthiness tests of Ford Focus cars that are 3 years old (based on data from the Department of Transportation). The random variable x represents the number of cars that failed among six that were tested for roadworthiness. x P(x) 0 0.377 1 0.399 2 0.176 3 0.041 4 0.005 5 0 + 6 0 + Using Probabilities for Unusual Eventsa. Find the probability of getting exactly one car that fails among six cars tested.b. Find the probability of getting one or fewer cars that fail among six cars tested.c. Which probability is relevant for determining whether one is an unusually low number of cars that fail among six cars tested: the result from part (a)or part (b)?d. Is one an unusually low number of cars that fail among six cars tested? Why or why not?” is broken down into a number of easy to follow steps, and 149 words. The full step-by-step solution to problem: 22 from chapter: 5-2 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Since the solution to 22 from 5-2 chapter was answered, more than 234 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 121 chapters, and 3629 solutions. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12.

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