It is 4/13.
It is 8/13.
The probability of drawing one face card is 12 in 52. The probability of drawing the second face card, then, is 11 in 51. And so on, 10 in 50, 9 in 49, and 8 in 48. Since this is sequential probability, simply multiply the odds, giving (12/52)(11/51)(10/50)(9/49)(8/48) or (95040/311875200). I'l leave it to the reader to do the simple reduction to lowest terms.
Spade 25% Ace ~8%
The probability of drawing a king and a queen from a standard 52 card deck is 32 in 2652, or 8 in 663, or about 0.012066. The first king or queen is 8 in 52. The second card is 4 in 51. Simply multiply 8/52 by 4/51.
The probability of drawing a queen or a four from a standard 52 card deck is 8 in 52, or 2 in 13, or about 0.1538.
The probability of drawing a red card is 1/2 (26/52).The probability of drawing a face card is 3/13 (12/52).The probability of drawing a red face card is 3/26 (6/52).The probability of drawing a red card or a face card is 8/13 (32/52).2 out of 52or 1 out of 26.
It is 8/13.
The probability of drawing one face card is 12 in 52. The probability of drawing the second face card, then, is 11 in 51. And so on, 10 in 50, 9 in 49, and 8 in 48. Since this is sequential probability, simply multiply the odds, giving (12/52)(11/51)(10/50)(9/49)(8/48) or (95040/311875200). I'l leave it to the reader to do the simple reduction to lowest terms.
The probability of drawing a black 8 from a standard deck of 52 card is 2 in 52 or 1 in 26 or about 0.03846.
The probability of drawing a red card followed by a spade is (1 in 2) times (1 in 4), or 1 in 8, or 0.125. The probability of drawing a spade followed by a red card is (1 in 4) times (1 in 2), or 1 in 8, or 0.125. Since you have two distinct desired outcomes, add them together, giving a probability of drawing a red card and a spade of 0.25.
Spade 25% Ace ~8%
8/52
The probability of drawing a king and a queen from a standard 52 card deck is 32 in 2652, or 8 in 663, or about 0.012066. The first king or queen is 8 in 52. The second card is 4 in 51. Simply multiply 8/52 by 4/51.
The probability of drawing a queen or a four from a standard 52 card deck is 8 in 52, or 2 in 13, or about 0.1538.
It is 8/52 or 2/13
The probability of drawing a king or a nine from a standard deck of 52 cards is (4 + 4) in 52, or 8 in 52, or 2 in 13, or about 0.1538.
There are 4 sevens and 4 elevens (Jacks) out of a 52 card deck, so the probability of drawing one or the other is 8/52 = 2/13.