Решение задачи N1893 теория вероятностей Лапласа,

1893. The packer packs 900 parts, checked by OTC or manufactured by workers with a personal brand. The probability that the part is marked with a personal stamp is 0.45. What is the probability that the items marked with a personal stamp will be: a) 400 pieces; more than 405 pieces?

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