5 A box contains 5 discs, numbered 1, 2, 4, 6, 7. William takes 3 discs at random, without replacement, and notes the numbers on the discs.
- Find the probability that the numbers on the 3 discs are two even numbers and one odd number.
The smallest of the numbers on the 3 discs taken is denoted by the random variable \(S\).
- By listing all possible selections (126, 246 and so on) draw up the probability distribution table for \(S\).