1. Miss Zeuggin February 6th 2009
Objectives:
Understand Probability and Odds
Understand Probability of Mutually Exclusive and Mutually Inclusive Events
Find the probability and odds of different situations
Standards:
2.6,2.7

2. Chapter 9 Section 7
Probability and Odds

3. Warm-Up Situation: I have 4 green, 12 red and 6 blue marbles in a bag.
If selected at random, what is the probability of selecting…
A) P(3 green) B) P(5 red) C) P(2 blue)
D) P(3 green and 4 red) E) P(4 green and 2 red and 1 blue)

4. “Mind-Bender”
How many muscles does a cat have in each ear?

5. ODDS! Another way of measuring the chance of an event occurring
Calculations:

6. Example..
32. The weather forecaster said that the probability of rain today is 60%. Find the odds that it will not rain today.

7. Example..
33. A coach said that there was a 75% chance that his star player would not play in the game. What are the odds that the player will play?

8. Example…
34. Given odds of 4:7, find P(S) and P(F).

9. Example..
35. A box contains 4 red, 3 blue, and 8 green chips. What are the odds of picking 2 green and 2 red chips? (Without replacing the chips and only picking four chips)

10. Example..
36. A box contains 5 red marbles and 7 green marbles. Find the probability of drawing 2 red marbles:
With replacement
Without replacement

11. Class Work
Prob and Odds Worksheet (#15-18)

12. MORE Probability!
Independent Events: Events that DO NOT affect each other
Dependent Events: Events that DO affect each other
Probability of 2 Independent Events Occurring:
Probability of 2 Dependent Events Occurring:

13. MORE Probability Probability of Mutually Exclusive Events
Probability of Mutually Inclusive Events

14. Class Work
Worksheet

15. Homework
Finish Worksheets