1. An ________ is any happening for which the result is uncertain, and the possible results are called ________.
2. The set of all possible outcomes of an experiment is the ________ ________.
3. The formula for the ________ of an event is P (E) = n (E) / n (S), where n (E) is the number of equally likely outcomes in the event and n(S) is the number of equally likely outcomes in the sample space.
4. If P (E) = 0, then E is an ________ event, and if P (E) = 1, then E is a ________ event.
5. Two events A and B (from the same sample space) are ________ ________ when A and B have no outcomes in common.
6. Two events are ________ when the occurrence of one has no effect on the occurrence of the other.
7. The ________ of an event A is the collection of all outcomes in the sample space that are not in A.