1. Big Idea The distribution of the probabilities of all possible outcomes from a situation can be displayed in tables and graphs. Goals Review probability notions, introduce function notation P(x) of an event x, and discuss odds. Take a moment to read about all the terms in this section before we begin.

2. 1.Suppose a drawer contains 8 white socks, 6 black socks, and 2 gray socks. If you reach in without looking, what is the probability that the sock you pick is: a.black? b. not black? 2. Suppose a drawer reach contains w white socks, b black socks, and g gray socks. If you in without looking, what is the probability that the sock you pick is: a. gray? b. not gray?

3. 1. Given the chart of blood types below, a. what is the probability that a person has type A+ or O+ blood? b. what is the probability that a person does not have type AB− blood? c. what is the probability that a person who has type AB blood is AB−? Type Percent 0+ 38.4 0– 7.7 A+ 32.3 A– 6.5 B+ 9.4 B– 1.7 AB+ 3.2 AB– 0.7

4. Also, the “Probability of an Event with Equally Likely Outcomes” is: If a situation has a total of n equally likely outcomes and E is an event, then P(E) = # of outcomes E n Finally, to calculate the odds of an event: odds of E occurring = P(E) P(complement of E) = P(E) 1 - P(E)