Results 1 to 3 of 3

Thread: probability problem

  1. Aug 25th, 2006, 05:19 PM #1
    fiery123
    fiery123 is offline

    Thread Starter
    Member
    Join Date
    Jul 2006
    Posts
    58

    probability problem

    As usual my question is pretty simple, but which i find very hard.

    A, B, and C played in 3 different teams. The chance of A's team winning is 0.18, of B's team 0.1, and of C's team 0.25.
    What is the probability that at least 2 teams win?
    Reply With Quote Reply With Quote
  2. Aug 26th, 2006, 09:10 AM #2
    Glaysher
    Glaysher is offline
    Addicted Member Glaysher's Avatar
    Join Date
    Jul 2006
    Posts
    132

    Re: probability problem

    The possible ways this can happen is:

    A and B win, C doesn't, Probability = 0.18 x 0.1 x 0.75
    A and C win, B doesn't, Probability = 0.18 x 0.25 x 0.9
    B and C win, A doesn't, Probability = 0.1 x 0.25 x 0.82
    A, B and C win, Probability = 0.18 x 0.1 x 0.25

    Work out each of these probabilities and add them together for the answer
    Reply With Quote Reply With Quote
  3. Aug 28th, 2006, 02:05 AM #3
    fiery123
    fiery123 is offline

    Thread Starter
    Member
    Join Date
    Jul 2006
    Posts
    58

    Re: probability problem

    alright i get it, the answer is 0.079. thanyou very much.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules


Click Here to Expand Forum to Full Width