A bag contains 5 yellow and 4 green marbles. Three marbles are selected at random from the bag, without replacement.

(a) Show that the probability that exactly one of the marbles is yellow is \(\frac{5}{14}\).

The random variable \(X\) is the number of yellow marbles selected.

(b) Draw up the probability distribution table for \(X\).

(c) Find \(E(X)\).