calculation
Maths of coincidence

Posted April 9th, 2008 by david
In What are the chances? we saw how the chance of a rare event occurring could be calculated for specific problems.
Three children with the same birthday?

Posted February 5th, 2008 by david

A recent news story featured a family whose three children had all been born on January 29th. But is this so remarkable?
Maternal death coincidence?

Posted January 12th, 2008 by david
Two women admitted to the maternity unit of the Royal Hampshire hospital on December 21st 2007 died of Streptococcus A infections within two days, one on December 23rd and one a day later. In a BBC News article the hospital said "their deaths appear to be coincidental".
So what is the chance of such an event happening by chance alone?

