what are the odds of getting a radar bill

Discussion in 'Paper Money' started by xeno108, Mar 30, 2006.

  1. xeno108

    xeno108 New Member

    This is a mathematical question. Assuming all is based on statistics, what are the chances that a bill is a radar (ie 1 out of x are radar bills)... I'm not sure how to come up with an equation that would solve that.

    I'm curious because after searching hundreds of dollars, I finally found one!!! (2003A L 45599554 D)
     
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  3. NickTheHobo

    NickTheHobo New Member

    one in one thousand. Each brick has its own four beginning numbers. One of the bills in that brick of 1000 will have the opposite ending four.
     
  4. xeno108

    xeno108 New Member

    in that light, would it not be one in 10,000? because it would take 10,000 bills to change the first four numbers? 12340000 - 12349999 (radar is 12344321)
     
  5. NickTheHobo

    NickTheHobo New Member

    snap. i guess ur right. the theory works though.
     
  6. Jimm1514

    Jimm1514 New Member

    Another Member turned me on to this website. It's fun checking Serial Numbers

    www.coolnumbers.com
     
  7. xeno108

    xeno108 New Member

    so i guess the true question is now appearant... not "what are the odds of finding a radar bill"... rather

    "What are the odds of having $10,000?"

    and the time to go through them all
     
  8. Scotto

    Scotto I collect what I like

    :goofer: If my wife had her name on the account... ZERO!:goof:
     
  9. Jim M

    Jim M Ride it like ya stole it

    Another Member turned me on to this website. It's fun checking Serial Numbers

    www.coolnumbers.com


    I just went there and put a bill I had found in the gallery. Rated a 95.8. 60024008
     
  10. NickTheHobo

    NickTheHobo New Member

    I've used that site for a while. It says that the odds of finding a radar are one in one hundred (0.010%) but I'm pretty sure thats wrong.
     
  11. genetic

    genetic Junior Member

    I agree that one in 10,000 is correct.

    For each of the first four digits, there is a 1/10 chance its mirror digit matches. Thus (1/10)^4 = 1/10,000.
     
  12. satootoko

    satootoko Retired

    Actually, if it says .01% that's correct. At least 1/100 of 1 percent was 1/10,000 of unity when I took 4th grade math, before "New Math" came along. :D.
     
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