In order to find the probability, start by finding the probability of selecting a red marble out of the jar,
[tex]\frac{6}{11+6+9}=\frac{6}{26}=\frac{3}{13}[/tex]then, do the same for selecting a green marble, however, remember that the first marble was not replaced, meaning that at this point there are 5 red marbles in the jar,
[tex]\frac{11}{11+5+9}=\frac{11}{25}[/tex]finally, multiply the probabilities,
[tex]\frac{3}{13}\times\frac{11}{25}=\frac{33}{325}[/tex]Answer:
The probability of the event is 33/325.