Results 1 to 2 of 2

Math Help - Coin Percentages

  1. #1
    Member Rimas's Avatar
    Joined
    Sep 2006
    From
    West Philly
    Posts
    86

    Coin Percentages

    Two players flip three fair coins each.What is the probabililty that they get the same number of heads?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,605
    Thanks
    1574
    Awards
    1
    The probability that both toss two exactly two heads is \left[ {{3 \choose 2}\left( {\frac{1}{2}} \right)^3 } \right]^2.

    Now you do for all three other cases and add them up.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. please help percentages
    Posted in the Statistics Forum
    Replies: 1
    Last Post: March 2nd 2010, 02:58 AM
  2. percentages
    Posted in the Math Topics Forum
    Replies: 6
    Last Post: February 5th 2010, 07:50 AM
  3. need help with percentages
    Posted in the Algebra Forum
    Replies: 6
    Last Post: October 30th 2009, 10:26 PM
  4. percentages
    Posted in the Algebra Forum
    Replies: 1
    Last Post: October 16th 2008, 09:11 AM
  5. percentages
    Posted in the Algebra Forum
    Replies: 1
    Last Post: September 9th 2008, 03:07 PM

Search Tags


/mathhelpforum @mathhelpforum