Question: what is the probability of getting a jack or a club?
Answer: The probability of picking up a club is 13/52, since each deck contains 13 club (1♣, 2♣, 3♣, 4♣, 5♣, 6♣, 7♣, 8♣, 9♣, 10♣, J♣, Q♣, K♣) cards.