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Two Coins and a Match

Flip two fair coins. Define three events:

  • AA: the first coin is heads
  • BB: the second coin is heads
  • CC: the two coins match

Check the three pairs first, then compute

P(ABC)P(A)P(B)P(C)P(A \cap B \cap C) - P(A)P(B)P(C)

Answer format: round to 3 decimal places.