Can anyone answer this question honestly or advise how to research....

I am wanting to know if the keno on the Game King video slots is actually drawing 20 random numbers out of 80, as in a live draw with the balls, or is it programed just like most slot machines where in it's simply using RNG technology to pay out whatever %/amount based on your bet amount, and then lights up the correct amount of your numbers to match whatever payback% you