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.

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My mother gave birth to my eldest sister on 13 April 1949; she gave birth to my second sister on 13 April 1951; she gave birth to my brother on 13 April 1953. I was born two years later on 15 April 1955. My mother had no other children, so all four of her children were born in mid-April, three on the same day. My sister gave birth to my mother's only grandchild on 14 April 1983. There are several other contiguous date coincidences in our family including the fact that my father died on 27 March 1955 and my mother died on 25 March 2006 at 11 pm. Had she lived just 25 hours longer, she would have died on the 51st anniversary of my father's death.
Total votes: 259
Date submitted:Sun, 15 Jan 2012 17:50:05 +0000Coincidence ID:4786