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A card is drawn from an ordinary pack of 52 playing cards. What is the probability that it is a king, given that it is a face card?

(a) 1/3
(b) 1/4
(c) 1/6
(d) 1/13

User Cyphus
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1 Answer

4 votes

Final answer:

The probability of drawing a king from a standard deck of 52 cards given that the card is a face card is 1/3. This is because there are 4 kings out of 12 total face cards in the deck. The correct answer is (a) 1/3.

Step-by-step explanation:

The subject of the question is Mathematics, and it involves calculating the probability of drawing a king from an ordinary pack of 52 playing cards, given that the drawn card is a face card.

A standard deck has a total of 12 face cards, which includes jacks, queens, and kings from each suit (clubs, diamonds, hearts, and spades). Since each suit has one king, there are 4 kings in total.

To solve this, we need to calculate the conditional probability of the card being a king, given that it is a face card. The formula for conditional probability is P(A|B) = P(A ∩ B) / P(B), where A is the event that the card is a king, and B is the event that it is a face card.

In our case, P(A|B) = P(King ∩ Face Card) / P(Face Card), which is 4/12 or 1/3. Therefore, the probability is 1/3.

User Matthew Jones
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