Results 1 to 2 of 2

Math Help - discrete probability problems

  1. #1
    Junior Member
    Joined
    Aug 2007
    Posts
    26

    discrete probability problems

    hello,
    can anyone in the forum help me with these 3 discrete probability problems?
    (attached in a pdf document)
    cheers
    Attached Files Attached Files
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    For part a of the first question you need to find C such that

    <br />
\sum_{r=1}^{\infty} p_k(r)=\sum_{r=1}^{\infty} C(1-P)^{r-1} =1<br />

    as the sum of the pmf should be 1. For 0<P<1 this is a convergent geometric series, and you should be able to write down
    its sum immeadiatly.

    Note \sum_{r=0}^{\infty} q^r = \frac{1}{1-q}, \ \ \mbox{for all }0<q<1

    RonL
    Attached Thumbnails Attached Thumbnails discrete probability problems-gash.jpg  
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Discrete Math problems
    Posted in the Discrete Math Forum
    Replies: 2
    Last Post: May 5th 2010, 10:05 PM
  2. Discrete Word Problems...
    Posted in the Discrete Math Forum
    Replies: 0
    Last Post: October 13th 2008, 06:17 PM
  3. another discrete math problems
    Posted in the Discrete Math Forum
    Replies: 1
    Last Post: June 22nd 2007, 03:03 PM
  4. Two Discrete Problems
    Posted in the Discrete Math Forum
    Replies: 6
    Last Post: February 12th 2007, 02:38 PM
  5. Need Help on these Discrete Problems
    Posted in the Discrete Math Forum
    Replies: 0
    Last Post: April 30th 2006, 01:29 PM

Search Tags


/mathhelpforum @mathhelpforum