The number of cracks in a section of interstate highway that are significant enough to require repair is assumed to follow a Poisson distribution with a mean of two cracks per mile. a. determine the probability mass function of the number of cracks (x) in 5 miles away. b. Find the probability that there are at least five cracks in 5 miles of highway that require repair. c. calculate the mean and variance of X.
The number of cracks in a section of interstate highway that are significant enough to require repair is assumed to follow a Poisson distribution with a mean of two cracks per mile. a. determine the probability mass function of the number of cracks (x) in 5 miles away. b. Find the probability that there are at least five cracks in 5 miles of highway that require repair. c. calculate the mean and variance of X.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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The number of cracks in a section of interstate highway that are significant enough to require repair is assumed to follow a Poisson distribution with a mean of two cracks per mile.
a. determine the probability mass
b. Find the probability that there are at least five cracks in 5 miles of highway that require repair.
c. calculate the mean and variance of X.
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