{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Answer let a1 be accidents at intersection 1 and a2 be

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tandard deviation of total accidents during six months? c) Suppose that accidents at intersection #1 result in $5,000 in damages, and those at intersection #2 cause $6,000 in damages because of slightly higher speeds. What is the expected value of the damages incurred in six months? Answer: Let A1 be accidents at intersection 1, and A2 be accidents at intersection 2 Looks like Poisson distribution λ1 = 5/year = 5 year ­1 λ1 t = (5 year ­1) (0.5 year) = 2.5 The mean and variance of the Poisson distribution are both λ1 t = 2.5. Likewise, at intersection 2, 1/6 CEE 202 – Engineering Risk & Uncertainty Spring 2011 (Bond) Homework 9 Expected Values; Sampling λ2 = 3/year = 3 year ­1 λ2 t = (3 year ­1) (0.5 year) = 1.5 This is mean and variance of accidents at intersection 2. a) Mean Let T be total accidents. T = A1 + A2 µT = µA1 + µA2 = 2....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern