Elements of probability

Elements of probability

1. Concept

   • Opportunity of than an event ocurred

2. Sample Space

   • All possible outcomes of an experiment

3. Event

   • Subset of sample space (set of possible outcomes )
     • Important opetations in events
       • Union of events
         • A U B
           • Union of all events of A And B
       • Intersection of events
         • A n B
           • Common events of A and B
       • Nule event
         • Do not have outcomes

4. Venn Diagram

   • Graph the differents relations and operations between events

5. Important Axioms

   • The probability of an event is between 0 and 1
   • The probability of sample space is equal to 1

6. Basic counting principle

   • For calculating the possible outcomes in an event with various characteristics

7. Conditioanl Probability

   • When in two events, for than an event ocurred, the other when for one event to occur the other must have occurred.
   • Bayes Teorem
     • Relationated with the condition, in the ocurred of the events
       • P(A/B), than indicate the probability of A, ocurred B

8. Independent Events

   • When the outcom of an event do not afect the outcom of other