8. In jar A, there are 6 balls, of which 4 are red and 2 are white; in jar B, there are 4 balls, of which 3 are red and 1 is white; in jar C, there are 5 balls, of which 2 are red and 3 are white. One ball is drawn from each of the jars A, B, and C. Find:
(1) the probability that exactly 2 of the balls are white;
(2) the probability that at least 2 of the balls are white.
(1) $P=\frac{1}{3} \times \frac{1}{4} \times \frac{2}{5}+\frac{1}{3} \times \frac{3}{4} \times \frac{3}{5}+\frac{2}{3} \times \frac{1}{4} \times \frac{3}{5}=\frac{19}{60}$,
( 2 ) $P=\frac{17}{60}+\frac{1}{3} \times \frac{1}{4} \times \frac{3}{5}=\frac{20}{60}=\frac{1}{3}$