bag A contains 13 marbles and bad B contains 8 marbles. 4 marbles are chosen at random from bad A and put into bag B. Then 4 marbles are chosen at random from bag B to be put into bag A. If the marble started in bag A, what is the probability that it finished in bag B? Give your answer as a fraction in its simplist form.
![bag A contains 13 marbles and bad B contains 8 marbles 4 marbles are chosen at random from bad A and put into bag B Then 4 marbles are chosen at random from bag class=](https://us-static.z-dn.net/files/ddc/146dcbd9d6705c2bf41b04e3320d2a8e.png)