Here’s the binomial distribution 80’s style. Each click generates a series of n independent Bernoulli trials resulting in a random variable Y which is the number of successes. The probability function of Y is:
where 
Archive for February, 2009
Binomial distribution 80’s style
Friday, February 13th, 2009Finite projective plane of order 3
Wednesday, February 11th, 2009
This painting is derived from a finite projective plane of order 3.
Number of points and lines 
. Each line is incident with n+1=4 points, each point is incident with four lines. The projective plane corresponds to this cyclic block design which has thirteen varieties arranged in thirteen blocks of size 4.
Geological
Saturday, February 7th, 2009
There are small, persistent landslides from these cliffs every few minutes. Sometimes they can’t be seen, but you can hear the hissing noise. This is the result.
The beach has many blocks of stone containing fossillised shells. Lots of these stones have live barnacles and limpets firmly attached. It’s hard to tell what they think of their ancestors, but not that much seems to have changed over time.
A balanced incomplete block design
Saturday, February 7th, 2009
