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Rework problem 11 from section 4.1 of your text involving the flipping of a weighted coin....

Rework problem 11 from section 4.1 of your text involving the flipping of a weighted coin. Assume that the coin is weighted so that a tail is 8 times as likely as a head. The coin is flipped 12 times. What is the probability that both heads and tails occur?

Math   Statistics-And-Probability   
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