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In a well-shuffled, standard 52 card deck, what is the probability that a card is a Queen, given that it is a black card

User Grastveit
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2 Answers

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29 votes

Answer:

2/52

Explanation:

User Jeremy Roberts
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18 votes
18 votes
There are two black queens in a standard deck, so the probability is 2/52 or 1/26.

If instead you know you pulled a black card from the deck and you’re wondering what the probably is that it’s a queen, then it’s 2/26, since there are still 2 black queens, but only 26 black cards.
User Sethbc
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