Abag contains 8 blue marbles, 6 red marbles, and 4 green marbles. what is the probability of selecting a blue marble, replacing it in the bag and then selecting a red marble?
a.7/9
b.1/3
c.2/27
d.4/27

Since the probability of drawing a blue marble is 4/9 and the probability of drawing a red marble is 1/3, when we multiply these, we get 4/27. We multiply them since they are independent compound events.