{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Quiz 5 answer key Bb

Quiz 5 answer key Bb - NAME_ANSWER KEY TA OM 210...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
NAME _ANSWER KEY ______________________________________ TA _______________ OM 210: Statistical Analysis for Management Quiz 5: Discrete Probability Distributions Directions: For the questions below, write your answers to each question in the spaces provided on the next page. Report all probabilities as decimals rounded to four (4) decimal places. Report expected values rounded to two (2) decimal places. Report money rounded to the nearest cent. Use the backs of these pages for your calculations. For a particular volunteer fire and rescue company operating 24 × 7 (= 24 hours a day, 7 days a week), statistics show that 1 call is expected to come in, on average, every 40 minutes. This is a Poisson problem. DEF: Let X be the discrete r.v. that counts the number of calls that are received during the specified interval of time, with values x = 0 (none), 1, 2, …. Given: μ = 1 call/40 min × 60 min/1 hour = 1.5 calls/hour Assume X is Poisson. Then ( 29 ! x e | x X Prob x μ = μ = μ - with μ = 1.4 calls per day 1. What is the chance that an hour will go by without receiving any calls?
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the 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