Results 1 to 2 of 2

Math Help - Probability puzzle

  1. #1
    Newbie
    Joined
    Apr 2009
    Posts
    1

    Probability puzzle

    There are 5000 tickets in a raffle and each person buys only one ticket.

    The raffle is held 19 times per year and the same 5000 people always buy the tickets.

    What are the chances of someone winning the raffle twice in the 19 draws?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by JF72 View Post
    There are 5000 tickets in a raffle and each person buys only one ticket.

    The raffle is held 19 times per year and the same 5000 people always buy the tickets.

    What are the chances of someone winning the raffle twice in the 19 draws?
    Bernoulli trials will work here: see post #2 here or post #34 here.

    for this problem you have n = 19, k = 2 and p = \frac 1{5000}
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Probability Crossword Puzzle?
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: February 3rd 2010, 10:17 PM
  2. puzzle, set theory or statistics or probability
    Posted in the Discrete Math Forum
    Replies: 2
    Last Post: December 21st 2009, 04:24 AM
  3. A two-envelopes puzzle (probability)
    Posted in the Statistics Forum
    Replies: 1
    Last Post: September 2nd 2008, 09:34 AM
  4. Golf & Probability Puzzle
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: May 24th 2008, 12:09 PM
  5. Probability Puzzle
    Posted in the Statistics Forum
    Replies: 4
    Last Post: July 18th 2007, 12:05 PM

Search Tags


/mathhelpforum @mathhelpforum