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You roll a die, flip a coin, and draw a card. What is the probability that:

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The first two shall be obvious. A dice has 6 possible outcomes, so getting any number has probability 1/6. A coin has two sides, so there are two outcomes, each with probability 1/2, neglecting the tiny probability the coin stands on edge (just kidding!). With the deck of cards it is trickier. If you are talking about the 52 card deck, then there are exactly 4 aces, you may have 4 favorable outcomes out of 52, so your probability is 4/52=1/13. If you are talking about 36-card deck, then it is 4/36=1/9.