There are 4 suits in a pack of 52 cards
13- Heart
13- Diamond
13- Spades
13- Clubs
Each suits has 1 ace , 1jack, 1king , 1queen
26- red card , 26- black card
(i) P(a king) = 4/52
(ii) P(a red card ) = 26/52
(iii) P(a diamond) = 13/52
(iv) P(the six of spade) = 1/13