There are 4 red marbles, 2 white marbles, and 2 black marbles in a bag. Consider the following compound events.

What is the probability that Maria will pick two red marbles if she returns the first
marble to the bag?
P ((red)) P ((red)) = (StartFraction 4 over 8 EndFraction) (StartFraction 4 over 8 EndFraction)
=
✔ 1/4
What is the probability that Maria will pick up two red marbles in a row if she did not replace the first marble in the bag?
P ((red)) P ((red)) = (StartFraction 4 over 8 EndFraction) (StartFraction 3 over 7 EndFraction)
=