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Old 08-08-2005, 03:39 PM
wmspringer wmspringer is offline
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Join Date: Apr 2005
Posts: 254
Default Re: Odds of same 7 digits

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What are the odds of a bank statement having the same 7 digit number, such as 11111.11?

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Depends.
If you were to choose a random 7-digit number between 0000000 and 99999.99, the chances of any particular combination coming up would be 1 in 10 million.

However, numbers between 0 and 999999 aren't really 7-digit numbers, so if you just take those between 10000.00 and 99999.99, that gives you 1 in 9,000,000.

Now, that's 1 in 9,000,000 for EACH repeating number (11111.11, 22222.22, etc) and there are 9 of those, so if you have a 7-digit bank balance and all numbers are equally likely (which is not a given) then the probability of getting one of those 9 numbers is 1 in 1,000,000.

But you get another chance every time your balance changes :-)
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