Results 1 to 2 of 2

Math Help - Hope someone help with this probability

  1. #1
    Newbie
    Joined
    Apr 2009
    Posts
    4

    Hope someone help with this probability

    This is a probability question in some language otherwise than English, I try to translate the meaning into English, and hope someone help.


    ----

    If there is a horizontal circular track, where two marbles moving on the track freely and randomly as they are released by the player. The two marbles will finally stop at two places of the track and they will create an angle to the center of the circular track, if the angle created is smaller than or equal to degree 30 , then the player will win $3, what is the probabilty of he winning $3

    as well as the expected value, what is the expected value of this game?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Jan 2009
    Posts
    105
    Quote Originally Posted by louis1234 View Post
    This is a probability question in some language otherwise than English, I try to translate the meaning into English, and hope someone help.


    ----

    If there is a horizontal circular track, where two marbles moving on the track freely and randomly as they are released by the player. The two marbles will finally stop at two places of the track and they will create an angle to the center of the circular track, if the angle created is smaller than or equal to degree 30 , then the player will win $3, what is the probabilty of he winning $3

    as well as the expected value, what is the expected value of this game?
    I think from symmetry that the probability of the angle being less than 30 degrees will be 30/180 = 1/6.

    To get the expected value of the game you need to know how much the player loses if the angle is larger than 30 degrees. Or does the player just get nothing if the angle is larger than 30 degrees?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Math Help Forum: My Last Hope
    Posted in the Advanced Math Topics Forum
    Replies: 5
    Last Post: February 21st 2010, 07:22 AM
  2. Hope someone can help
    Posted in the Trigonometry Forum
    Replies: 5
    Last Post: November 12th 2009, 07:27 AM
  3. OMG .. I hope someone can do this.
    Posted in the Statistics Forum
    Replies: 6
    Last Post: March 5th 2008, 08:51 AM
  4. I hope I am not bugging you all to much
    Posted in the Algebra Forum
    Replies: 9
    Last Post: December 16th 2007, 10:23 PM
  5. Hello everyone......Hope you can help
    Posted in the Discrete Math Forum
    Replies: 2
    Last Post: November 20th 2007, 07:00 PM

Search Tags


/mathhelpforum @mathhelpforum