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Thread: a mathematical riidle on chance

  1. #1 a mathematical riidle on chance 
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    the bad luck of the gambler:

    im gonna toss a ten faces dice 1 million time

    chose your bet:

    11,22,33,44,55,66,77,88,99 or00 and search it

    9600 hits is draw
    why in a fifty chance game you lose so badly, like 10%

    http://www.eveandersson.com/pi/digits/1000000

    edit:

    if you bet for the repetition of two numbers you lose but if you chose different numbers you draw

    well in a two toss of coins shouldnt be better bet for heads and tails than both heads?


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  3. #2  
    Forum Radioactive Isotope MagiMaster's Avatar
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    In a 50/50 game, you lose 50% of the time, by definition.


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  4. #3  
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    yes but the search engine must have such an odd way of counting that the repetitions of numbers appear much less than a 50/50 chance would expect

    still trying to figure out
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  5. #4  
    Forum Radioactive Isotope MagiMaster's Avatar
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    Ok, I'm not sure I understand your original question. You say you have a string of 1 million random digits (0-9), right? Then you're looking for the count of doubles? If so, then you should expect it to come out to roughly 10%.

    For any two n-sided dice, the chance that they'll match is 1/n.
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  6. #5  
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    yes thats it so if you search for the combination 111 it shoyuld appear 1000 times average in that link of pi

    but you can verify repetitions of numbers appear much less than they should dont know why
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  7. #6  
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    Please show us some examples...
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  8. #7  
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    use browser search engine on any repeated combination like 111 or 1111 or 777 or 7777 then search a non repeated number like 916 or 212

    i checked all posible repeated combinations
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  9. #8  
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    Why? What would be the point? Why should anyone waste their time doing that?
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  10. #9  
    Forum Radioactive Isotope MagiMaster's Avatar
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    Putting together a quick program, I counted 1051 instances of "111", 984 instances of "777", 988 instances of "916" and 1000 even instances of "212". All well within the expected distribution.
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  11. #10  
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    humm its curious then there must be something wrong with the web browser searcher

    thanks fir the indication
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  12. #11  
    Forum Radioactive Isotope MagiMaster's Avatar
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    For one thing, triplets broken across multiple lines won't show up right, though there's probably more to it than just that.
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  13. #12  
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    yes i had accounted for broken lines but there must be something more as you point

    btw thanks a lot for your time

    edit:

    a posibility is that if i search for 11 and it finds 111 the web browser searcher will count only once when it should count it twice
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