The Joker.
52 cards are in a standard deck.
half not including the jokers
13
There are 13 red heart cards and 13 red diamond cards. There are 4 six cards; 2 of which are red. So, on a standard deck of 52 playing cards how many cards are red or 6 is 13+13+2 = 28.
There are 13 spades in a standard deck of 52 cards.
In a standard deck of playing cards, there are 26 red cards.
10
52 cards are in a standard deck.
To the best of my knowledge, a standard deck of playing cards only has black and red cards, so the odds are zero.
There are four 2s in a standard deck of playing cards.
There are 52 cards in a standard deck of playing cards, not including jokers.
half not including the jokers
Cribbage uses a standard deck of cards.
4
13
A standard pack of Playing cards has 13 cards of each suit. There are 13 club cards in a deck (Ace-10, Jack, Queen, King).
There are 13 red heart cards and 13 red diamond cards. There are 4 six cards; 2 of which are red. So, on a standard deck of 52 playing cards how many cards are red or 6 is 13+13+2 = 28.