There are 52 cards in a deck.
4*4 = 16 of those are either a seven,jack, queen or king.
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16 out of 52 = 16/52 = 0,307692307692307 = 30,77 %
The answer depends on how many cards are drawn, whether or not at random, from ordinary decks of cards, with or without replacement.
It is 1: a certainty. A complete pack of cards must have a seven.
There are 4 sevens so probability of drawing a seven is 4/52 or 1/13 or 0.0769.
There are 13 clubs (including the seven of clubs), and 3 other sevens (from the other suits). So that makes 16 cards that are clubs or sevens. Thus, the probability of drawing a club or a seven from a standard 52 card deck is 16/52 = 4/13 (about 31%).
The probability of drawing one black seven from a standard deck of cards is 2/52 = 1/26. The probability of drawing the other black seven from the remaining 51 cards is 1/51. Therefore the probability of drawing both black sevens from a deck of cards = 1/26 x 1/51 = 1/1326 ~ 0.000754 (3sf).
The probability on a single random draw, from a normal deck of cards, is 1/52.The probability on a single random draw, from a normal deck of cards, is 1/52.The probability on a single random draw, from a normal deck of cards, is 1/52.The probability on a single random draw, from a normal deck of cards, is 1/52.
I t is necessary to assume thata single card is drawn,it is drawn at random,it is a normal deck of cards.If these assumptions are realised - and there is nothing in the question to suggest that they are - then the probability is 1/52.
In a standard deck of 52 cards, there are 13 clubs and 1 seven of hearts. The probability of drawing a club or the seven of hearts, then, is 14 in 52, or 7 in 26.
The answer depends on how many cards are drawn, whether or not at random, from ordinary decks of cards, with or without replacement.
It is 1: a certainty. A complete pack of cards must have a seven.
There are four 7s in a deck of 52 cards. Therefore probability of picking a 7 is 4/52 or 1/13 or 0.0769.
There are 4 sevens so probability of drawing a seven is 4/52 or 1/13 or 0.0769.
The probability of drawing one black seven from a standard deck of cards is 2/52 = 1/26. The probability of drawing the other black seven from the remaining 51 cards is 1/51. Therefore the probability of drawing both black sevens from a deck of cards = 1/26 x 1/51 = 1/1326 ~ 0.000754 (3sf).
There are 13 clubs (including the seven of clubs), and 3 other sevens (from the other suits). So that makes 16 cards that are clubs or sevens. Thus, the probability of drawing a club or a seven from a standard 52 card deck is 16/52 = 4/13 (about 31%).
The probability of drawing a seven in a standard deck of 52 cards is 4 in 52, or 1 in 13, or about 0.07692.
Probability of drawing a 7 or 9 is the probability of draw a 7 plus the probability of draw a 9 which is 4/52 + 4/52 = 8/52 = 2/13 = 0.1538.
6/49