A jar contains four blue marbles and two red marbles. Suppose you marble at random, and do not replace it. Then you choose a second marble. Find the probability of each event. a. You select a blue marble and then a red marble.
b. You select a red marble and then a blue marble.
c. One of the marbles you select is blue and the other is red.
d. Both of the marbles you select are red.​