(a(i))[1]
State the probability that the card shows the letter $A$.
(a(ii))[1]
State the probability that the card shows the letter $A$ or $B$.
(a(iii))[1]
State the probability that the card does not show the letter $B$.
(b(i))[2]
Find the probability that both cards show the letter $A$.
(b(ii))[3]
Find the probability that the two letters are different.
(c)[2]
Find the probability that the cards do not show the letter $C$.