![]() Griffiths’ findings reinforce what experts know about the birthday problem-shared birthdays aren’t as random as we like to think. Andy Griffith and Marilyn Monroe (June 1, 1926) Like Marlon Brando and Doris Day (see previous list), two more screen icons of the fifties were born on the same day. If there are only 23 people in a room, there is a 50 percent chance that two share a birthday and this likelihood increases as the number of pairs entering the room grows. Griffiths and his colleague wrote a paper, which explores coincidences and also considers “the birthday problem.” A classic statistical exercise, the birthday problem aimed to discover how many people needed to gather in a room for two to share a birthday. It’s not that it is unlikely … there is something else about it that strikes us,” says Tom Griffiths, director of the Computational Cognitive Science Lab and the Institute of Cognitive Brain Sciences at the University of California, Berkeley. While normal birthday messages are made for a single person, happy birthday twins wishes are for two people who share their birthday. The probability of getting heads, heads, heads, heads, heads, is the same as any other sequence. If you flip a coin five times and it comes up heads each time, you think that something funny. But something we perceive as coincidental, say a mother, daughter, and granddaughter sharing the same date of birth, seems so random to us so we believe that supernatural forces cause this coincidence. Humans understand the world exists in certain ways for example, we know that weather patterns, not angry gods, cause thunder. For persons you find in the California Birth Index and California Death. What is it about shared birthdays that are so irresistible? For marriages that took place 1949-1986 it can take longer than 6 months to. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |