3.20.2017

Benford's law

Benford's law or the "First-digit" law states that for a naturally occurring set of numbers, the first digit of these numbers would follow a frequency distribution as -

Let us check this on a sample data set of catalogue data for all known exoplanets. If we calculate the percentage frequency distribution of the first digit for each planets period of revolution, this is what we get -
That's pretty close to the Benford's distribution!