1. 1.9 Probability

2. Remember that in probability, the set of
all possible outcomes of an experiment
is called the sample space. Any set of
outcomes is called an event.
If every outcome in the sample space is
equally likely, the theoretical probability
of an event is

3. DRAWING MARBLES
A jar contains two red marbles, three blue marbles, and four green marbles.

4. Why the two colors for the dice?
Rolling Two Dice
Talk about the 36 pairs of dice, why there are 36, and why they are colored red and black.
Why the two colors for the dice?

5. Geometric Probability is used when an experiment has an infinite number of outcomes.
In geometric probability, the probability of an event is based on a ratio of geometric measures such as length or area.
The outcomes of an experiment may be points on a segment or in a plane figure.

7. Geometric Probability – Probability based on area
What is the probability of throwing a dart and hitting the red? 6 1 1 1 1 4 4 1 1 1 1 6

8. Which target gives you the best chance of winning the prize?
Suppose you can win a prize by hitting one of the following two targets within a circle.
Which target gives you the best chance of winning the prize? 3 6