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A card is selected from an ordinary deck of 52 cards. The probability that the card is a queen or a spade is what?

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3 answers

  1. The probability that it's a queen would be 1/13, because there are 4 out of 52 cards in the deck that is a queen. 4/52 simplifies to 1/13.

    The probability that it's a spade would be 1/4, because there are 13 spades out of the 52 cards in the deck. 13/52 reduces to 1/4.

    =)

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  2. Think about it Haley.

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  3. Prob = P(queen) + P(spade) - P(the queen of spades)

    = 4/52 + 13/52 - 1/5
    = 16/52 = 4/13

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