Possible issues with random number generators for calculator apps

[Dave Britten]

This is relevant:

http://dilbert.com/strip/2001-10-25

Just yesterday, I wrote a quick-and-dirty dice program on a TI-80 I had handy to play a game, and damned if the results didn't look awfully skewed. But were the results really skewed? I'd probably have to play a few thousand more games to have a better idea.

I recall reading that Apple had to modify the shuffle algorithm in iTunes/iOS, effectively making it less random, in order to make it appear more random to users.