+ Reply to Thread
Results 1 to 3 of 3

Thread: Please Help HW.

  1. #1
    Points: 5, Level: 1
    Level completed: 9%, Points required for next Level: 45

    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Please Help HW.




    A study undertaken by the Miami-Dade Supervisor of Elections in 2002 revealed that 44% of registered voters are Democrats, 37% are Republicans, and 19% are others. If two registered voters are selected at random, what is the probability that both of them have the same party affiliation (to 4 decimals)?

    I'm not sure where to begin.
    Dem .44
    Rep .37
    Others .19

    Please explain so I can work on other similar problems.

  2. #2
    Devorador de queso
    Points: 95,940, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Awards:
    Posting AwardCommunity AwardDiscussion EnderFrequent Poster
    Dason's Avatar
    Location
    Tampa, FL
    Posts
    12,937
    Thanks
    307
    Thanked 2,630 Times in 2,246 Posts

    Re: Please Help HW.

    Hi! We are glad that you posted here! This looks like a homework question though. Our homework help policy can be found here. We mainly just want to see what you have tried so far and that you have put some effort into the problem. I would also suggest checking out this thread for some guidelines on smart posting behavior that can help you get answers that are better much more quickly.
    I don't have emotions and sometimes that makes me very sad.

  3. #3
    Points: 4,841, Level: 44
    Level completed: 46%, Points required for next Level: 109
    Con-Tester's Avatar
    Posts
    167
    Thanks
    3
    Thanked 59 Times in 57 Posts

    Re: Please Help HW.


    Think about the following questions in the order in which they appear:

    1. What is the probability of selecting one voter at random who is a Dem?
    2. Having selected one Dem, what is the probability that the next randomly selected voter is also a Dem?
    3. Therefore, what is the composite probability that two randomly selected voters are both Dems?
    4. Consider Q1 to Q3 for Reps and for Other.
    5. Which selection [path produces / paths produce] the outcome that the problem asks about?
    6. What is the overall probability of selecting along [that path / any one of those paths]?
    Last edited by Con-Tester; 09-26-2014 at 06:07 AM. Reason: Blah.

+ Reply to 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






Advertise on Talk Stats