A fair coin is tossed six times. The event "A = getting all heads" has probability 1/64. (a) Describe in words what the event AC is. At least five tails occur in the six flips. At least one head occurs in the six flips. At least one tail occurs in the six flips. At least five heads occur in the six flips. Getting all tails. (b) What is the probability of AC? (Enter your answer as a fraction.)

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