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OpenStudy (anonymous):
A card is drawn from a standard deck of 52 cards. What is the probability this card will be a king or an ace? A. about 3.9% B. about 7.7% C. about 15.4% D. about 50%
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OpenStudy (freckles):
Use p(a or b) =p(a) +p(b) - p(a and b)
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