If a card is drawn from a well shuffled pack of cards, the probability of drawing a spade or a king is -.

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1. 16/52

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2. Spade 13/52 = 1/4
   King 4/52 = 1/13
   Spade OR King 13/52 + 4/52 – 1/52 (because the King of Spades is in both groups) = 16/52 = 4/13

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