4/52 or 1/13. same as any number
3 out of 13
1/52
It is 3/13.
12/52nd
It is 1/13.
The probability of picking a diamond out of a standard deck of 52 cards is 13 in 52, or 1 in 4, or 0.25.
13/52
3 out of 13
1/52
4/52
Prob = 0.
It is 3/13.
The probability of picking a 23 of hearts in a standard 52 card deck of cards is zero, because there is no 23 of hearts. If you meant to ask about the probability of picking a 2 or a 3 of hearts, then the probability is 2 in 52, or 1 in 26, or about 0.03846.
The probability of pick a red ace out of a standard deck of cards would be 1/26 because there are two read aces, the ace of diamonds and the ace of hearts.
12/52nd
The probability of drawing an Ace from a standard deck of 52 cards is 4 in 52, or 1 in 13, or about 0.07692.
There are 4 Kings in a deck of 52 cards, so the probability of picking a King is 4/52 or 1/13.