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OpenStudy (anonymous):
An unfair coin with Pr[H] = 0.1 is flipped. If the flip results in a head, one student is selected at random from a class of 6 girls and 4 boys. If the flip results in a tail, one student is selected from a different class containing 3 girls and 7 boys. Find the probability that a boy is selected.
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OpenStudy (anonymous):
Do you understand conditional probability?
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