SOLUTION: A coin is biased so that the probability that it lands showing heads is 2/3.The coin is tossed three times.Find the probability that: a)No heads are obtained. b)More heads than t

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Question 924020: A coin is biased so that the probability that it lands showing heads is 2/3.The coin is tossed three times.Find the probability that:
a)No heads are obtained.
b)More heads than tails are obtained.

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Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Look at the possible outcomes.
HHH - 3 heads -
HHT - 2 heads -
HTH - 2 heads -
HTT - 1 heads -
THH - 2 heads -
THT - 1 heads -
TTH - 1 heads -
TTT - 0 heads -
a)
b)

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