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Algebra

What is the probability that if you draw a card from a standard deck of cards that it is a card of Diamonds or an 8 ?

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  1. prob(diamonds) = 1/4
    prob(an 8) = 4/52 = 1/13
    prob(the 8 of diamonds) = 1/52
    prob(an 8 or a diamond) = 1/4 + 1/13 + 1/52
    = 13/52 + 4/52 - 1/52 = 15/52 = 4/13

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    Reiny
  2. 4/52

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