Читать книгу Probability and Statistical Inference - Robert Bartoszynski - Страница 30

In Example 1.12, the difference is described as “at least two identical outcomes in a row and tails on the last toss,” which means the event {HHT, HTT, TTT}.

Next, we introduce the following important concept:

Definition 1.3.8 If , then the events and are called disjoint, or mutually exclusive.