Solution of problem N1349 Laplace probability theory

Solution of problem N1349 Laplace probability theory

1349. According to the university, only 45% of applicants receive positive marks at the entrance exams. Suppose that the admission committee received 2120 applications. What is the probability that:
a) at least 970 entrants will receive positive marks in the entrance examinations?
b) 950 entrants will receive positive marks in the entrance examinations?

Additional information:

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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