birthday coincidence

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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.

Many of the animations were produced using Flash and will no longer work.

My son, Jacob, had a sister born on his birthday, 27th September, he married a lady whose sister was born on the same date, one year later, 16th January, and they subsequently had two sons with the same birthday, 7th September. I would love to know what are the chances of this happening!
Total votes: 626
Date submitted:Sat, 14 Jan 2012 08:50:05 +0000Coincidence ID:3564