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      Question

      A fair coin is tossed 6 times. What is the probability

      of getting exactly either two or three heads?
      A 35/64 Correct Answer Incorrect Answer
      B 25/64 Correct Answer Incorrect Answer
      C 15/32 Correct Answer Incorrect Answer
      D 5/16 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Since a fair coin is tossed 6 times hence total number of possible outcomes = 2 6  = 64

      Total number of ways of getting either two or three heads = 6C2  +  6C3  = (15 + 20) = 35

      Hence required probability = 35/64

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