Playing cards have been around in China since the 600s. The 52 card deck originated in about 1400 by Arabs. Four suits already existed, and I'm not sure anybody knows exactly why they chose to have 13 in a suit, but since it goes 1 through 10 and then a prince (jack), a queen and a king it makes some kind of sense. So 4 times 13 equals 52.
Chat with our AI personalities
There are 52 cards of which 26 (a half) are black. So he probability that the first card is black is 26/52= 1/2
The probability of a random card from a pack of 52 cards being a spade or a face card is 11 in 26. There are 13 spades and 12 face cards, with 3 of the face cards being spades, so there are 22 possible cards (13 + 12 - 3) that are spades or face cards. The probability is 22 in 52, or 11 in 26.
It is 26/52, a fraction which can be simplified.
Assuming a 52 card deck, 4 jacks / 52 cards or probability of 4/52 or 1/13 or 0.077.
There are 3 face cards in a suit of 13 cards, so the probability is = 3/13.