Wetzel

Math 120

Chapter 3

Probability –

            Def. –

            Experiment –

            Outcome –

            Event -

Sample Space –

            Sample Size –

            Tree Diagram –

            Formula for probability –

            Complement of an event –

                                             or        

            Empirical Probability –

            Theoretical Probability –

            Law of Large Numbers –

            Is probability the same as odds???

            Mutually Exclusive Events –

            Addition Rule –   P(A or B)

                        For Mutually Exclusive Events –

                                    P(A or B) = P(A) + P(B)

                        For NOT Mutually Exclusive Events -

                                    P(A or B) = P(A) + P(B) – P(A and B)

            Contingency Tables –

            Conditional Probability –           P(A│B)

            Independent Events –

            Dependent Events –

            Multiplication Rule -      P(A and B)

                        For Independent Events –

                                    P(A and B) = P(A) ∙ P(B)

                        For Dependent Events –

                                    P(A and B) = P(A) ∙ P(B│A)

Determining Sample Size –

            Factorial -        n! =

            Fundamental Counting Rule –

            Combination –

            Permutation –