4 red marbles, 3 green, 2 yellow. you pick 2 at random.What is probability of a. 1 yellow & 1 red

Question

b. 2 green

Answer 1

is the first marble picked returned before the second is picked ?
- very important.

Answer 2

no

Answer 3

prob(yellow, then red)
= (2/9)(4/8)
= 1/9

follow the same kind of reasoning for your second part