Решение задачи N2075 теория вероятностей

2075. There are three machines in the workshop. During the shift, they require adjustment with probabilities of 0.05; 0.14; 0.3 respectively. Find the probability that: a) adjustments will require all machines; b) at least one machine tool.

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