I don't understand how to get this answer.?

Question

don't understand.

A 52 card deck of playing cards is shuffled and one card is dealt from the top of the deck. What is the probablilty that it will be a red card? How do you do that? The answer is 1/2, but don't get why though.

Answer 1

a deck of cards consists of 52 cards ~ 26 red and 26 black (half and half)

so when u deal the first card half the deck is red and half is black making it a 50% chance of getting a red card.

hope this helps

Answer 2

Okay -- in a 52 card deck, you have 26 black and 26 red cards. So the ratio is 1:2
When you are dealing them at random, the PROBABILITY is that there is a one in two chance that the first card will be a red card, or 1/2.
If the question asked how many cards would you deal to guarantee getting a red card, the answer would have to be 27. That's because there is the very slight possibility that the first 26 cards you dealt would all be black cards, so to ensure you dealt a red card, you would have to deal 27.
That's the difference between probability (likelihood) and a sure thing.
Okay?

Answer 3

There are 52 cards in a deck, 13 cards in each suit, 26 red and 26 black. To find the odds of a red, simply divide 52 by 26 and you get 1/2

Answer 4

1/2 of the cards in a deck is red and the other 1/2 is red. You have a 1 out of 2 chance that the card will be red. What's there not to understand?

Answer 5

half of 52 is 26 so the probablity of drawing a red card would be 50% or 1/2.

another example: the probablilty of rollig a even number on a dice is 1/2 because there are 3 even numbers out of 6 in all(2,4,6)

Answer 6

A standard 52-card deck is comprised of 4 suits, each of which has 13 cards. The suits are clubs, spades, hearts and diamonds. Hearts and diamonds are red. Therefore, you have 2 chances out of 4 of drawing a red suit or 2*13 chances out of 52 possibilities of drawing a red card.
2*13 = 26
26/52 = 1/2

Answer 7

See number of red card are-
No of diamond cards + No of heart cards
or 13+13=26

as sample space or total cards ar 52 .

Probability=26/52=1/2

Answer 8

A quarter of the cards are hearts, which are read, another quarter are diamonds which are also read. The others clubs and spades are black. Half the cards are therefore red and the other half are black. If you take one card off the top (or elsewhere) it must be black or red, therefore the probability is 1/2.

Answer 9

Half the cards are red, half are black. So any random card pulled from the full deck has a 50% chance of being red, and a 50% chance of being black.

Answer 10

26 cards are red, and 26 cards are black 13 hearts, 13 diamonds, (26 red) and 13 clubs, 13 spades (26 black)

so 26/52 are red and 26/52 are black and if you do 52/26 on your calculator that is exactly 1/2