1. Chapter 1 The Axioms of Probability

2. 1.1 Random Experiments
The basic notion in probability is that of a random experiment:
an experiment whose outcome cannot be determined in advance, but is nevertheless still subject to analysis.

3. Examples of random experiments are:
E1. tossing a die
E2. measuring the amount of
rainfall in ZhengZhou in February,
E3. counting the number of calls
arriving at a telephone exchange during a fixed time period,
E4. selecting a random sample of fifty people and observing the number of left-handers,
E5. choosing at random ten people and measuring their height.
1, 2, 3,
4, 5 or 6.