1. Probability Union Intersection Complement

2. Warm Up: Coin Flipping Activity
Make a T-chart on your notebook.
Start flipping your coin and record.
Do this 54 times?
How many times did you flip a head?
How many times did your coin land on a tail?
What did you just given me in term of mathematical word??????????????????

3. The chance that an even will occur The basic for making prediction
What is a probability?
The chance that an even will occur
The basic for making prediction
Widely used in games of chance, investing and weather forecasting

4. Sample Space
The set of ALL POSSIBLE outcomes of a probability experiment

5. Example: Find the size of and describe the same space
Experiment Size Sample Space
Tossing a coin
Tossing 2 coins
Drawing 1 card
Rolling a die
Rolling 2 dice
The gender of 3 Children
Tossing a coin & Rolling a die

6. Experimental Probability
A process where several trials lead to a group of results that are called outcomes
A trial results in an outcome … an experiment is all the out comes combined
Example:
Flipping a coin
What you just did for the warm up is consider to be and experimental probability? Must do an experiment 

7. Classical/Theoretical Probability
Use sample space to determine the probability that an even will occur
Assume that all outcomes are equally likely to occur

8. 4 Rules of Probability
The probability of any event is a number (either fraction or decimal) between and including 0 & 1
If an event (E) absolutely cannot occur, it’s probability is 0.
If an event is certain to occur, then the probability is 1.
The sum of all the probabilities of the outcomes in any sample space is always 1.

9. is an event that describes a single outcome. Compound event
Type of event
Simple event
is an event that describes a single outcome.
Compound event
is an event made up of two or more simple events

10. Union All the possible outcome in an event
List the sample space for getting a Queen and heart.
Recall that the union symbol  means “or.”
Remember!

11. Intersection
Find the possible outcome when roll a dice to get an even or prime number
What do they have in common?
Define: Intersection is what they’ve share (overlapping part in a Venn Diagram)

12. What are those that are not consider even? 1, 3, 5 Correct
Complement
When rolling a dice, what is the outcome for rolling an even number? Write down the sample space.
2, 4, 6 Correct
What are those that are not consider even?
1, 3, 5 Correct
These are said to be complement of each other

13. Practice:
13.3 Exercises, pp ; 1-30

14. Skittle Experiment
Randomly pick out skittles in your bag and record the color. (Remember to put it back)
Repeat this 25 times and record the color each time
What is the experimental probability of getting a red?
What is the theoretical probability of getting a red?