Решение задачи N405 теория вероятностей Лапласа

405. When transmitting messages, any sign due to interference is independent of others with a probability of 0.4. 1500 characters have been sent. What is the probability that there will be 180 to 200 distortions in the received message?

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