Solution of problem N2861 probability theory

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2861. In a group of 30 students in the control work received: “Excellent” - 8 students, “Good” rating - 10 students, “Satisfactory” rating - 9 students, “Unsatisfactory” rating - 3 students. What is the likelihood that three students called to the blackboard coped with the test?

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  • Content type File
  • Content description 29 kB
  • Updated on the site 25.10.2018
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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Solution of problem N2861 probability theory
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