Question

Two urns contain white balls and yellow balls. The first urn contains 3 white balls and 6 yellow balls and the second urn contains 3 white balls and 8 yellow balls. A ball is drawn at random from each urn. What is the probability that both balls are white?

A.

B.

C.

D.

Answer 1

A.2/33 B.1/9 C.1/11 D. 3/10

Answer 2

first event probability of choosing white ball = 3/9 = 1/3
second .......................................................... = 3/11

since the 2 events are independent the probabilities are multiplied

so can you find the correct one?

Answer 3

b.1/9

Answer 4

Is that correct?

Answer 5

no whats 1 / 3 * 3/11

Answer 6

no whats 1 / 3 * 3/11

Answer 7

those are the 2 probabilities which are multiplied to get the required probability

Answer 8

those are the 2 probabilities which are multiplied to get the required probability

Answer 9

can you do that computation?

Answer 10

can you do that computation?

Answer 11

I come out with 1/11

Answer 12

right - multiplying gives 3/33 which equals 1/11

Answer 13

right - multiplying gives 3/33 which equals 1/11

Answer 14

thank you