2 of the 9 balls in the first urn are white. 3 of the 13 balls in the second urn are white. The probability that a ball randomly selected from each are both white is the product:
Two urns contain white balls and yellow balls. The first urn contains 2 white balls and 7 yellow balls and the second urn contains 3 white balls and 10 yellow balls. A ball is drawn at random from each urn. The probability that both balls are white is 2/39.