Results 1 to 2 of 2

Math Help - 9 coins 9 heads probability

  1. #1
    MHF Contributor
    Joined
    Mar 2010
    From
    Florida
    Posts
    3,093
    Thanks
    5

    9 coins 9 heads probability

    p[of tossing nine coins and getting all heads] = nCr*p^n*q^{n-r}=9C9*.5^9=.001953125

    Is this correct?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Aug 2007
    From
    USA
    Posts
    3,110
    Thanks
    2
    If they are fair coins, you have it.
    Last edited by TKHunny; April 17th 2010 at 05:30 PM.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 10
    Last Post: November 3rd 2010, 09:12 AM
  2. Replies: 1
    Last Post: June 1st 2010, 03:41 AM
  3. Coins Probability
    Posted in the Statistics Forum
    Replies: 4
    Last Post: February 10th 2010, 08:07 PM
  4. confidence bounds for two biased coins being heads.
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: January 27th 2010, 11:53 PM
  5. Probability with a die and with coins.
    Posted in the Statistics Forum
    Replies: 1
    Last Post: October 14th 2009, 05:55 PM

Search Tags


/mathhelpforum @mathhelpforum