A bag Contains 2 red, 3 blue and 4 green identical balls. If two balls are picked at random one after the other without replacement, what is the probability that both are green?
-
\(\frac{1}{6}\)
- \(\frac{1}{3}\)
- \(\frac{16}{18}\)
- \(\frac{3}{8}\)
- \(\frac{4}{9}\)