Essentials of Statistics Books a la carte Plus NEW MyLab Statistics with Pearson eText - Access Card Package (5th Edition)

5th Edition

ISBN: 9780133892697

Author: Mario F. Triola

Publisher: PEARSON

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Chapter 5.2, Problem 20BSC

Car Failures. In Exercises 19-22, 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.

20. Range Rule of Thumb for Unusual Events Use the range rule of thumb with the results from Exercise 19 to identify a range of values containing the usual numbers of car failures among six cars tested. Based on the result, is three an unusually high number of failures among six cars tested? Explain.

X	P(X)
0	0.377
1	0 399
2	0.176
3	0.041
4	0.005
5	0+
6	0+

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Chapter 5.2, Problem 19BSC

Chapter 5.2, Problem 21BSC

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Chapter 5 Solutions

Essentials of Statistics Books a la carte Plus NEW MyLab Statistics with Pearson eText - Access Card Package (5th Edition)

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Solution Summary: The author explains that the range of values containing the usual number of car failures among six cars tested is –0.9 to 2.7.

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