Coin toss patterns (state transition diagrams)

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Coin toss patterns (state transition diagrams)

Forward this email to a friend or colleague and challenge them to solve it.

Hi, 

A fair coin is tossed repeatedly and independently. Find the expected number of tosses until the pattern Head-Tail-Head appears.

Hint: It might be helpful to start with building a state transition diagram to depict a Markov chain for the coin toss.



 

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