Friday, January 07, 2011

More 11:11 moronity

In the past I've complained about Uri Geller's (and others) fascination with the number 11 which, depending on who you ask, is a sign of peace, war, or 1,111 spirits or angels who are making themselves known through 11 (and also the time 11:11).

For example, I wrote about the occurrence of the sum 11 on clocks (and airline seats) and the relationship with Benford's Law.

One aspect of the 11 fascination is looking for 11 in sums of digits (classic numerology). For example, Geller has September 11th is the 254th day of the year: 2+5+4 = 11 The date of the attack: 9/11 - 9 + 1 + 1 = 11.

So, in general a good question is 'how likely is 11 to appear as the sum of single digits?'. To answer that I calculated the number of times all sums of two and three digits (i.e. add any two from 0 through 9, or any three from 0 through 9) occur. Here are the graphs.

Clearly, 11 is very likely to occur when you start looking for it, but personally I'm starting my own New Age mystical group based on the number 13. Using my amazing powers of probability I should be able to find lots of three digit things that add up to 13.

And, also 13 people at the Last Supper. Jewish children mature at age 13. 13 witches in a coven. 13 cards in a suit.

It must mean something.

Also, 13 letters in Graham-Cumming. Bow down, I am the prophet of 13.


chanux said...

In Sri Lanka people believe 13 is an evil number. For example if the digits in a vehicle's registration number adds up to 13, good luck getting rid of it in SL.

enemyofchaos said...

haha excellent.

Francis Turner said...

Nope you're wrong. As eny fule kno the true answer is 42. Although since 42 is 6*7 and 6+7 is 13 you're getting close being merely the sum not the product