Final & Solutions - Probability and Statistics Course...

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

Probability and Statistics Course 92.386 Final Examination Time: 2 hours Answer any 6 of the following 8 questions. Each question is worth 5 points 1. In a certain assembly plant, three machines, B 1 , B 2 , B 3 , make 30%, 45%, and 25%, respectively of the products It is known from past experience that 2%, 3%, and 2% of the products made by each machine, respectively, are defective Use Baye's Rule to determine the probability that a randomly selected product that is defective was made by machine Bs? 2 Suppose that airplane engines operate independently and fail with probability 0 4 Assuming that a plane makes a successful flight if at least half of its engines rUD, determine whether a 4-engine plane or a 2-.engine plane has a higher probability for a successful flight 3 Suppose a local drugstore owner knows that, on average, 100 people stop by the store per hour Use the Poisson distribution to determine a. the probability that in a given 3-minute period nobody enters the store b.
Image of page 1

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

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