Miss Zeuggin February 6th 2009

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Presentation transcript:

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

Chapter 9 Section 7 Probability and Odds

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)

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

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

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

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?

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

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)

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

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

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:

MORE Probability Probability of Mutually Exclusive Events Probability of Mutually Inclusive Events

Class Work Worksheet

Homework Finish Worksheets