Results 1 to 2 of 2

Thread: Calculating variance question.

  1. #1 Calculating variance question. 
    Join Date
    Jan 2013
    Hello all, forgive me my maths is on the level of the four basics of x,+,- and divide.

    part -1

    I have a question for your hopefully great minds.

    52 random variables, that all have a random numbers in 4 groups, of 1-13.

    distributed to nine random variables in order, twice rotated, giving the 9 random variables 2 of the 52 random variable each.

    then out of the remaining 52 random variable, 5 are distributed to the middle, to none of the nine random variables.

    firstly can this be calculated for variance and what would we use for the means?


    The same situation as above, except this time there is 3 of the 52 random variables, distributed to the middle seperate from the 5 random variables.

    Can this be calculated for variance?

    By now you may of guessed this is texas holdem poker.

    I believe that online poker which uses the part 1 system , as more variance than part two system, which is used in live play.

    I believe the distribution to be BI-modal or multi modal,

    I also believe that a sequence test would show a difference. I believe the 3 extra cards make more outs. So therefore the lesser player is favored keeping their interest.

    Part -3

    live play poker uses 1 deck of 52 cards shuffled and distributed at your table.

    Internet poker as a shuffle server, this server shuffles 1000000s of decks and puts them into a que, the next table that then needs a deck, gets the first deck out of the que. A new deck every hand

    I also think that this as effect, as by timing of an hand, you could constantly be a downswing of variance. In another words A player could constanty lose by bad timing, always been on the wrong side of variance.

    Is there any maths or way I could work this one out?

    I thank you for you help and will try to clarify if needed.

    Reply With Quote  


  3. #2  
    Join Date
    Apr 2012
    part 1 considering it should be completely random you could use the formula (relative frequency)=(chance of occurance)/(number of occurances).therefore since your cards are dealt first you have a (1/52,1/51) chance of getting a specific card. Now for your 5 cards in the middle your chance of getting the card you want in sequence (1/50,1/49,1/47,1/46,1/45). since you have no idea what cards the other players are holding.
    part 2 extra 3 (1/44,1/43,1/42)
    or 1/(number of cards-number of known cards)
    ((number of cards dealt)(number of players- your players))/((size of deck)-number of known cards)

    Last edited by fiveworlds; February 14th, 2013 at 12:00 AM.
    Reply With Quote  

Similar Threads

  1. Theory of Variance and the Existence of Life on Earth
    By himoura in forum Astronomy & Cosmology
    Replies: 9
    Last Post: October 21st, 2011, 06:20 AM
  2. Calculating the mole?
    By raid517 in forum Chemistry
    Replies: 1
    Last Post: June 28th, 2011, 09:07 PM
  3. Possible Fine Structure Large-Scale Variance
    By Michael_Roberts in forum Astronomy & Cosmology
    Replies: 9
    Last Post: September 14th, 2010, 06:54 AM
  4. calculating pi
    By AlexP in forum Mathematics
    Replies: 4
    Last Post: June 26th, 2007, 12:32 PM
  5. Calculating moles question
    By cmersits in forum Chemistry
    Replies: 8
    Last Post: October 10th, 2006, 04:54 AM
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts