A box contains papers numbered 1 to 8. Two slips are drawn, one after the other without replacement.

a) What is the probability that both numbers are even? (and for my sake why)

b) The first number drawn is a five and the second is composite? (a small explanation)

a) What is the probability that both numbers are even? (and for my sake why)

b) The first number drawn is a five and the second is composite? (a small explanation)