Solution of problem N1892 Laplace probability theory

Solution of problem N1892 Laplace probability theory

1892. The packer packs 400 parts, checked by OTC or manufactured by workers with a personal stamp. The probability that the part is marked with a personal stamp is 0.25. What is the probability that the parts marked with a personal stamp will be: a) 100 pieces; b) from 100 to 115 pieces?

Additional information:

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

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