Seasonal birthdays?

As of the 23rd May 2022 this website is archived and will receive no further updates.

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.

Are birthdays hereditary? I take after my mother's side of the family, specifically her father and all have our birthdays in July/August. My mother's brother also takes after his father and fits the pattern. My sister takes after my father's side, and his father, plus his brother, and all of them have February/March birthdays. On asking people which of their parents they look like, then what are their respective birthdays, this pattern is almost always followed. Not to the month but to a couple of months usually. Maybe this research will demolish my theory but if not, is it co-incidence or a biological pattern?
Total votes: 357
Date submitted:Sat, 14 Jan 2012 09:38:41 +0000Coincidence ID:3711