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What is the probability that a card drawn at random from a pack of playing cards is either a king or a jack?

(a) \(\frac{1}{13}\)

(b) \(\frac{2}{13}\)

(c) \(\frac{3}{13}\)

(d) \(\frac{4}{9}\)

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Best answer

(b) \(\frac{2}{13}\)

P(a king or a jack) = P(King) + P(Jack)

\(\frac{4}{52}\) + \(\frac{4}{52}\) = \(\frac{2}{13}\)

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