Jane Street–styleAnalystQuantitative AnalystQuestion #608
You have two decks of cards. Each deck contains both red and black cards in equal proportion. One deck has 52 cards, and the other has 104 cards, both consisting of half red and half black cards. You may choose which deck to play with. Then, you draw two cards at random from your chosen deck. If both cards are red, you win a prize. Which deck should you choose to maximize your chance of winning, and why?
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More Jane Street–Style Analyst Questions
You are given two identical eggs and a 100-story building. Your task is to determine the highest floor from which you can drop an egg without it breaking.How can you invert a pyramid of coins by moving only three coins?You flip a fair coin repeatedly and stop flipping after three heads in a row occur. What is the expected number of flips required?How many handshakes occur if every person in a room shakes hands with every other person exactly once?Given that the probability it rains on Sunday is 40% and the probability it rains on the weekend (Saturday or Sunday) is 60%, what is the probability it rains on Saturday?
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