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Solution of problem N3381 probability theory
3381. The student knows 25 of the 30 exam questions. Find the probability that a student will pass the exam, if it is enough to answer 3 of 5 questions proposed by the examiner.
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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