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

ISBN: 9780321836960 18

## Solution for problem 21 Chapter 5-2

Elementary Statistics | 12th Edition

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Problem 21

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 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 number of failures among six cars tested: the result from part (a) orpart (b)?d. Is three an unusually high number of failures? Why or why not?

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HSA 3111 CHAPTER 2 STUDY GUIDE Beliefs, Values and Health Beliefs and values in US have remained mostly private. Not a tax financed national health care program. For managers and policy makers: 1. Health of a population determines health care utilization a) Planning a health service is determined by health trends and demographics...

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