2501. In a class of 12 boys and 18 girls. You need to c

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2501. In a class of 12 boys and 18 girls. You need to choose a delegation of two people. What is the probability (assuming the choice is random) that: a) two boys are selected; b) two girls; c) a boy and a girl?

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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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