Question

Two urs 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 um. What is the probability that both balls are white?

Answer 1

2/39

Explanation:

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.

Answer 2

2/39

Explanation:

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:

P(A and B) = P(A) P(B)

P = (2/9) (3/13)

P = 2/39

P ≈ 5.13%