Probability

5. events are non-mutually exclusive if they share one or more outcomes.
6. an outcome is one of the possible results of a chance experiment.
12. two or more events are mautually exclusive if they share no outcomes.
15. if all the outcomes in the sample space are divided into two events they are complementary events.
17. equally likely outcomes are two or more results that have the same chance of occurring.
18. sometimes it’s dificul or impossible to calculate a theoretical probability so an estimate can be found using a large number of trials. This is called the experimental probability. If the number of trials is large the experimental probability should be very close to that of the theoretical.

1. probabilities can be expressed as fractions decimals and percentages.
2. a chance is an activity that may produce a variety of different results which occur randomly
3. when an experiment is performed one or more times, each occurrence is called a trial.
4. the sum of the probabilities of all the outcomes of a chance experiment is 1 (or 100%)
7. the sample space is the set of all possible outcomes of an experiment it is usually written inside braces.
8. outcomes are favourable if they are apart of some desired event.
9. a compound event is a collection of two or more outcomes from the sample space of a chance experiment.
10. if and experiment was preformed and an event did not occur thenthe complement definitely occurred.
11. the probability is 0% or 0.
13. the probability is 50% or 0.5
14. an event is either one outcome or a collection of outcomes it is a subset of the sample space.
16. the probability is 100% or 1