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Math Probability

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Using a standard deck of 52 cards find each probability.

1.)King, queen, or black card

2.)Spade or hearts card

  • Math Probability -

    I will assume you are drawing one card

    number of favourable outcomes
    = 4 kings + 4 queens + 26 black cards - 2black kings - 2black queens
    = 30

    prob(king or queen or black card ) = 30/52 = 15/26

    spade or hearts = 13 + 4 - 1 = 16
    prob = 16/52 = 4/13

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