"Neither card is red" is the same as "both cards are black". The probability that the first card is black is 26 out of 52, or 1/2. Given that the first card is black, there are 51 cards remaining, of which 25 are black; thus the conditional probability that the second card is also black is 25/51. The probability that both cards are black is the product of these two probabilities: 1/2 * 25/51 = 25/102, or about 24.51%.
n(S)=52
let A be the event that card drawn is a diamond
n(A)=13 so,
P(A)=13/52 &
let B be the event that card drawn is red
n(B)=26
P(B)=26/52
P(AorB)=P(A)=P(B)
=13/52+26/52
=39/52=3/4
The probability of drawing a diamond is a standard deck of 52 cards is 13 in 52, or 1 in 4, or 0.25.
number of cards in a deck =52 number of cards that are not diamond =39 Probability that the card drawn is not a diamond= 39/52 = 3/4
In a standard 52 card deck, the probability of drawing an ace is 1/13, and the probability of drawing a diamond is 1/4. The probability of drawing both an ace and a diamond is 1/52.Thus the probability of drawing an ace or a diamond is1/13 + 1/4 - 1/52 = 4/13 or about .308.
what are the odds in favor of drawing a diamond from an ordinary deck
Probability of drawing a seven of spades, from a 52 card deck, is 1/52.
The probability of drawing a diamond from a standard deck of 52 cards is 13 in 52, or 1 in 4, or 0.25.
The probability of drawing a king is 4:52The probability of drawing a diamond is 13:52 (or 1:4)The probability of drawing a king (0.07692...) then replacing that king into the deck then drawing a diamond is 0.019230769.If you leave the king out, the probability will be slightly greater (4/52) * (13/51)Unless the king you left out of the deck was a king of diamonds, in which case, the probability would be (4/52) * (12/51)
The probability of drawing a queen, from a 52 card deck, is 4/52 or 1/13.
Probability of drawing a black 7 from a standard 52-card deck is 2/52 or 1/26.
There are 4 nines in a 52 card deck so the probability of drawing a nine is 4/52 or 1/13. Which is 7%
The probability of NOT drawing a face card form a standard deck of 52 cards is 40 in 52, or 10 in 13.
The probability of drawing a diamond from a standard 52-card poker deck without jokers is 13/52, or 1/4. The probability of drawing a second diamond at that point would then be 12/51, for an overall probability of 12/212, or 3/53. This amounts to about a 5.88% chance.