Question

Assume we have a jar that contains 2 blue marbles, 2 red marbles, 2 green marbles, 2 yellow marbles, 2 white marbles, and 2 black marbles. If we randomly sample 2 marbles from this jar without replacement what is the probability of drawing a red or green marble on the first and a black or white marbles on the second?

Answer 1

4 / 12 x 4 / 11

Answer 2

1/3 and 4/11 sorry

Answer 3

Pr(1st is red or green) x Pr(2nd is black or white)
4 of 12 are red or grn 4 of the remaining 11 are black or white
MULTIPLY them
4/12 x 4/11 = 4/33 or 0.1212