Solution of problem N1695 Laplace probability theory

Solution of problem N1695 Laplace probability theory

1695. Plant varietal seeds produces hybrid seeds of corn. It is known that seeds of the first grade are 95%. Determine the probability that, out of the 200 seeds taken at random to test 200 seeds, exactly 180 will be of the first grade.

Additional information:

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