The distance between major cracks in a highway follows an

Chapter 4, Problem 124E

(choose chapter or problem)

Get Unlimited Answers
QUESTION:

Problem 124E

The distance between major cracks in a highway follows an exponential distribution with a mean of five miles.

(a) What is the probability that there are no major cracks in a 10-mile stretch of the highway?

(b) What is the probability that there are two major cracks in a 10-mile stretch of the highway?

(c) What is the standard deviation of the distance between major cracks?

(d) What is the probability that the first major crack occurs between 12 and 15 miles of the start of inspection?

(e) What is the probability that there are no major cracks in two separate five-mile stretches of the highway?

(f) Given that there are no cracks in the first five miles inspected, what is the probability that there are no major cracks in the next 10 miles inspected?

Questions & Answers

QUESTION:

Problem 124E

The distance between major cracks in a highway follows an exponential distribution with a mean of five miles.

(a) What is the probability that there are no major cracks in a 10-mile stretch of the highway?

(b) What is the probability that there are two major cracks in a 10-mile stretch of the highway?

(c) What is the standard deviation of the distance between major cracks?

(d) What is the probability that the first major crack occurs between 12 and 15 miles of the start of inspection?

(e) What is the probability that there are no major cracks in two separate five-mile stretches of the highway?

(f) Given that there are no cracks in the first five miles inspected, what is the probability that there are no major cracks in the next 10 miles inspected?

ANSWER:

Solution:

Step 1 of 5:

The distance between major cracks in a highway have an exponential distribution.

Which have a mean of 5 miles.

  1. We have to find the probability that there are no major cracks in a 10-mile stretch of the highway.

  1. We have to find the probability that there are two major cracks in a 10-mile stretch of the highway.

  1. We have to find the standard deviation of the distance between major cracks.

  1. We have to find the probability that the first major crack occurs between 12 and 15 miles of the start of inspection.

  1. We have to find the probability that there are no major cracks in two separate five-mile stretches of the highway.

  1. We have to find the probability that there are no major cracks in the next 10 miles inspected, if it is given that there are no cracks in the first five miles inspected.


Add to cart


Study Tools You Might Need

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back