Results 1 to 2 of 2

Math Help - Joint Probabilities and Probability trees

  1. #1
    Junior Member
    Joined
    Nov 2007
    Posts
    30

    Joint Probabilities and Probability trees

    What is the difference between using a joint probability density function to calculate the joint probabilities of observations/samples and simply multiplying out a probability tree to find the probabilities of certain events? The way I see it, a probability tree is just a visual representation of a discreet random variable that only takes values of 1 and 0 whereas the joint probability density function enables you to work with other types of functions?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Newbie
    Joined
    Jun 2010
    Posts
    7
    Well, if your distributions are continuous, you can toss the probability tree away, since it will have an infinite number of branches. For continuous stuff, the joint pdf is the way to go.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Approximate joint probabilities using marginal probabilities
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: June 23rd 2011, 04:04 AM
  2. Replies: 5
    Last Post: December 5th 2009, 11:30 PM
  3. Replies: 0
    Last Post: May 24th 2009, 07:23 AM
  4. Continuous joint probabilities
    Posted in the Advanced Statistics Forum
    Replies: 5
    Last Post: February 26th 2009, 03:08 PM
  5. HELP - Probability Trees!
    Posted in the Statistics Forum
    Replies: 4
    Last Post: December 3rd 2006, 01:27 AM

Search Tags


/mathhelpforum @mathhelpforum