9. The probability of passing all the examinations by the student at the faculty is 0.7. To estimate, with the help of Chebyshev´s inequality, the probability that the proportion of all exams from 2000 students who passed all the examinations in time is within the limits of 0.66 to 0.74.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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