Answer:
7/13
Explanation:
Probability is (# times specific event occurs) / (# times general event occurs).
Here the specific event is drawing a ball that isn't white - in other words, a ball that is either red or green. There are 4 + 3 = 7 such balls, so the numerator of the probability is 7.
The general event is picking a ball; there are 4 + 6 + 3 = 13 total balls, so that's the denominator.
The probability is then 7/13.
