Question

In a box contain 4 green balls 4 white balls and 4 red balls .If 4 balls are drown randomly what is the probability that no one even out of the 4 balls being white.

Answer 1

"that no one even out of the 4 balls being white" ??

you mean, none of the balls drawn is white ?
8 of the 12 are "non-white"

prob(of your event)
= (8/12)(7/11)(6/10)(5/9)
= 14/99

assuming the balls are not returned after they are drawn