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Two cards are dealt from a standard deck of 52 cards. What is the probability that the first card dealt is a $\diamondsuit$ and the second card dealt is a $\spadesuit$?

 Apr 10, 2015

Best Answer 

 #2
avatar+23254 
+4

Since there are 13 diamonds and 52 cards, the probability that the first card is a diamond is 13/52.

Now, there are only 51 cards remaining and 13 of these cards are spades, so the probability that the second card is a spade is 13/51.

Combining these, the probability that the first card is a diamond AND the second card is a spade is:

     13/52 x 12/51.

Multiply these together to get the final probability.

 Apr 10, 2015
 #1
avatar+33661 
+5

13 diamonds, so probability of 1st card being a diamond is 13/52 = 1/4

Given this, there are 51 cards left, 13 of which are spades, so probability that second card is now a spade = 13/51

 

Combined probability = (1/4)*(13/51) = 13/204 ≈ 0.064

.

 Apr 10, 2015
 #2
avatar+23254 
+4
Best Answer

Since there are 13 diamonds and 52 cards, the probability that the first card is a diamond is 13/52.

Now, there are only 51 cards remaining and 13 of these cards are spades, so the probability that the second card is a spade is 13/51.

Combining these, the probability that the first card is a diamond AND the second card is a spade is:

     13/52 x 12/51.

Multiply these together to get the final probability.

geno3141 Apr 10, 2015

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