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The number of large cracks in a length of pavement along a certain street has a Poisson

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 2 Chapter 4

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 2

The number of large cracks in a length of pavement along a certain street has a Poisson distribution with a mean of 1 crack per 100 m. a. What is the probability that there will be exactly 8 cracks in a 500 m length of pavement? b. What is the probability that there will be no cracks in a 100 m length of pavement? c. Let T be the distance in meters between two successive cracks. What is the probability density function of T ? d. What is the probability that the distance between two successive cracks will be more than 50 m?

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Statistics 201 9/06/16  Dispersion­ spread ­Info about location (avg or median)  Range­ difference between max and min ­Range=max­min  Positive/right skew ­ mean is pulled to the right, and is larger than the median  Negative/left skew ­mean is pulled to the left, and is smaller than the median  Symmetric/bell shaped ­ mean is approximately the same as median  IQR= Q ­Q3 1 ­ is not effected by extreme values b/c os ca;culated using values that lie close to the center of the data set. IQR is not used in inferential statistics but are useful as descriptive statist

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Chapter 4, Problem 2 is Solved
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Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

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The number of large cracks in a length of pavement along a certain street has a Poisson