Which lotteries do that an why would they have a system that did? I mean you could literally have a person pull numbers out of hat, or pull balls out of a spinning drum. I thought the allure of the lottery system was the randomness of the winners. This is not like some machine at a casino is it?
I believe the only ones in Oklahoma that are ball-generated are powerball and mega millions.
Edit- I finally found it: Pick 3 and Cash 5 are RNG-selected, the rest use real balls.