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Solution of problem N2849 probability theory
2849. In a group of 30 students in the test, 6 students received "5", 10 students - "4", 9 students - "3", the rest - "2". Find the probability that 3 students, called to the board, received the test work "2".
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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