1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

A probability questoin

  1. Aug 30, 2009 #1
    1. The problem statement, all variables and given/known data

    A new lifeform has been discovered in the sea. In particular, these sea-creatures
    come in THREE sexes, which are indistinguishable (except by other sea-creatures). If A robot captures N specimens, what is the probability these
    chocies will allow a “mated triple” with its promise of more little sea-creatures to come?


    2. Relevant equations
    This homework is supposed to be on conditional probabilities and counting methods, so I suppose Baye's Theorem and Law of Total Probabilities would be useful


    3. The attempt at a solution
    Unfortunately, I truly have no idea where to begin this problem.
    Any ideas?
     
  2. jcsd
  3. Aug 30, 2009 #2
    I suspect you are to assume the genders are equally likely in the sea-creature population.

    I would first try this indirectly but trying to calculate the probability that all N creatures belong to two identical genders.

    --Elucidus
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: A probability questoin
  1. Probability Density (Replies: 11)

Loading...