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Solution of problem N2987 probability theory
2987. In a group of 25 students, among which 10 girls, 7 tickets to a disco were purchased. Find the probability that among the ticket holders will be 3 girls and four boys.
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
Massimo86
exceeds: