Some numbers are more random than others

If you asked 100 people to choose a "random" number (digit) from the numbers 0 through 9 you would not expect any number to be picked more than any other. Studies show that the number "7" is picked six times more often than the number "5".

In the Iran electon 29 provinces voted for 4 people yielding 116 numbers. These numbers describing how many votes each person got in each province should have ended randomly with numerals 0 to 9.

They did not.

There were about six times as many that ended with a 7 as ending with a 5.

This post in Cognitive Daily has a Nice analysis of why the Iranian election is probably fraudulent.