Решение задачи N2685 теория вероятностей Бернулли

2685. The probability of hitting the target with any of 5 shots is 0.9. Find the probability of what will happen: 1) Exactly 4 hits. 2) At least 4 hits. 3) From 1 to 3 hits.

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