bank pin numbers

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understandinguncertainty.org was produced by the Winton programme for the public understanding of risk based in the Statistical Laboratory in the University of Cambridge. The aim was to help improve the way that uncertainty and risk are discussed in society, and show how probability and statistics can be both useful and entertaining.

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After meeting my brother I had not seen for a few years. We went for a drink and both stopped at the cash machine he noticed that our pin numbers were same. Both of us were with the same bank and neither of us had changed the random generated number from the bank. What are the odds of brothers both getting the same number from the same bank with accounts set up in completely different cities?
Total votes: 402
Date submitted:Thu, 28 May 2015 15:56:50 +0000Coincidence ID:8101