This is a conditional probability, given the card is red, what is the chance it is a heart. Since there are 2 red hearts, the probability if 1/2
The probability of drawing a red spade is zero. There are no red spades in a standard deck.
The probability is 7,893,600/311,875,200 = 0.0253
Assuming you refer to a normal deck of playing cards, either 0.481 (with jokers) or 0.5, one-half (without).
Probability of getting a King is 4/52 = 1/13. Having drawn the King, for it to be a Red King, the probability is 2/4 = 1/2. Hence the conditional probability is (1/13)x(1/2) = 1/26
This is a conditional probability, given the card is red, what is the chance it is a heart. Since there are 2 red hearts, the probability if 1/2
The probability of getting a red card out of a standard 52 card deck is 26 in 52, or 0.5. The probability of getting a second red card is 25 in 51, or 0.490, because one red card is missing, and the deck is short by one card. The probability of getting a black card next is 26 in 50, or 0.52, because the deck is short by two cards, but all the black cards are there. Multiply these probabilities together, and you get about 0.127, or about 1 in 8, so the probability of getting 2 red cards and then a black card in a random 52 card deck is about 1 in 8.
The probability of drawing a red spade is zero. There are no red spades in a standard deck.
1 in 52
The answer depends on how many cards are in the hand.
The probability is 7,893,600/311,875,200 = 0.0253
Assuming you refer to a normal deck of playing cards, either 0.481 (with jokers) or 0.5, one-half (without).
The probability of getting a face card or a red card in a standard deck of 52 cards is (26 + 12 - 3) in 52 or 35 in 52 or about 0.6731.26 red cards, 12 face cards, and 3 red cards that are also face cards.
The probability, if the cards are not replaced, is 2,535,000/6,497,400 = 0.3902 approx.
Probability of getting a King is 4/52 = 1/13. Having drawn the King, for it to be a Red King, the probability is 2/4 = 1/2. Hence the conditional probability is (1/13)x(1/2) = 1/26
It is 1/2 * 1/2 = 1/4
Assuming you're drawing from a complete shuffled 54-card deck, chances are one in twenty-seven.