Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Can you win this game?

  1. May 20, 2006 #1
    Ok here are the rules:
    Guess a number (integer) between 0 and 100. The number closest to 80% of the average of all the numbers guessed by the players wins :biggrin:.

    Say the numbers I got are: 10, 50, 60, 80, and 25. The average is 45 and 80% of the average is 36 so 25 would win since it's the closest to 36.

    The game will keep running for about 1 day depending on how many numbers I get. Please don't post numbers as replies, just send me a PM with your number.
    Last edited: May 20, 2006
  2. jcsd
  3. May 20, 2006 #2

  4. May 20, 2006 #3


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    You're not even close, cyrus.
    I'm winning this.
  5. May 20, 2006 #4
  6. May 20, 2006 #5
    True, but we're actually playing the game here! :biggrin:

    Are you gonna go with the most rational answer? Are people going to play rationally? Will anyone guess any crazy numbers like 100?

    So many questions :wink:
  7. May 20, 2006 #6
    I will be nice and go last. Everybody just post your numbers :smile:
  8. May 20, 2006 #7
    Everyone will post the numbers they want you to see so you take 80% of the average and decide on a number that will skew the average in their favor!
  9. May 20, 2006 #8
    you of course mean random numbers? or no?
  10. May 20, 2006 #9
    You can guess random numbers if you want, but if you want to win you should try to randomly guess a number that's as close to 80% of the average of all the numbers as possible :wink:.
  11. May 20, 2006 #10
    do we have any numbers so far? If no, I rather wait. I like to be last in doing things,
  12. May 20, 2006 #11
    I already opted to go last, so feel free to post your number :biggrin:
  13. May 20, 2006 #12
    I got 5 numbers so far.
  14. May 20, 2006 #13


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    And mine is going to win :tongue2:

  15. May 20, 2006 #14
    I've just sent my magic number.

    OK, feel free to go last, certainly you'll benefit :tongue2:
    (at first, I didn't notice that we have to pm physisc_wiz)
  16. May 21, 2006 #15
    Any last guesses before I post the results? I only got 9 numbers so far.
  17. May 21, 2006 #16
  18. May 21, 2006 #17
    Post Results! Post Results!
  19. May 21, 2006 #18
    Post 'em :smile:
  20. May 21, 2006 #19
    Ok here are the numbers I got:

    The average was 30 and 80% of the average = 24.

    mattmns won with his guess of 23, congratulations :biggrin:.

    If you wanna tell us how you rationalized your number, go right ahead. We can also play another round if people are interested. It'll be interesting to see how the results of this round affect the next round.
    Last edited: May 21, 2006
  21. May 21, 2006 #20
    Uh, I was so close... :)
    Congratatulalations Mattmns!
  22. May 21, 2006 #21
    Sweet! What do I win? :biggrin:

    I made the guess thinking there would be a lot of people guessing low, and then some people guessing higher (40+), so I figured 23 seemed reasonable. However, it seems like I was wrong, but still won :smile:
  23. May 21, 2006 #22
    You win the respect of fellow PF'ers :approve:

    So, another round?
  24. May 21, 2006 #23
    Sweet, I got second place! (29)
  25. May 21, 2006 #24
    Sure, but 80% won't work the same way again. How about an unknown n% and you don't tell us what the percent is until everyone submits his or her number.
    Then, a winner becomes random :)
  26. May 21, 2006 #25
    sweet! I got a yes. Ok another round. Same rules. The most interesting thing about this game is to see how the results change with the same rules and previous results posted! :biggrin:

    Don't forget to PM me the number, don't post it as a reply please.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook