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Solution of problem N2811 probability theory
2811. In a class of 7 boys and 14 girls. On September 1, they will randomly determine two attendants for September 2, who must prepare the class for classes. Find the chances that two boys will be on duty.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
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