Expected value of an unfair coin after seeing HTHTHT

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Given an unfair coin. In the trial run, you see HTHTHT. You win $1 if you get HH. How much would you pay to play this game?

Two followups:

  1. What if the trial run was HTHT?
  2. What if the trial run was HH?

My approach is to get expected p based on the first 6 flip - beta(3, 3). So the expected value to get HH is $1 * 1/4 = $0.25. However, I am not sure how to weight in the unfair coin information given in the question. So the whether the trail run is HTHTHT or HTHT will have the same estimated P as beta(3, 3) and beta(2, 2).

For the 2nd followup, not sure how to handle the uncertainty of seeing only HH.