SOLUTION: A fair coin is flipped 5 times. What is the probability of getting at least 4 heads?
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Question 1050850
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A fair coin is flipped 5 times. What is the probability of getting at least 4 heads?
Answer by
CubeyThePenguin(3113)
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The flips can be written as a sequence of five Hs and Ts, for example, HHTTH.
Total number of sequences: 2^5 = 32
4 heads: (5 choose 4) = 5
5 heads: (5 choose 5) = 1
Probability: (5+1)/32 = 3/16.