Chapter 4.5

Question 1

What is the complement of an event?

Answer 1

For event A, the complement is Abar or all possible outcomes that aren’t A; P(A)+P(Abar)=1

pg. 240

Question 2

How do you solve for the probability of at least one?

Answer 2

A=at least one; Abar=none; Find P(Abar); P(A or at least one success)= 1-P(Abar or no successes)

pg. 242