Wetzel

Math 155

11.6 – Events Involving Not and Or: Odds

Complement of an event –

                                             or        

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)

Are Odds and Probability the same???’

HW:  p.650  #13 – 45 odd.