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involving the expected number of heads when flipping one of two coins. One coin is fair and one is weighted so that Pr|H] =.

involving the expected number of heads when flipping one of two coins. One coin is fair and one is weighted so that Pr|H] =. You randomly select one of the two coins, and flip it 4 times, noting the result of 3 each flip. What is the expected number of heads?

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