- For the "binge drinking' question....
- The first information is defining binge drinking (5 or more drinks in a row for men, 4 ore more in a row for women)--these aren't probabilities, so these won't be used in our tree diagram....
- There are three "types of drinkers" defined, but only two probabilities for being involved in an alcohol related accident....
- Remember, those who drink moderately and those who abstain both fall into the category of "nonbingers..."
- For the private college question....
- The 70% refers to the percent of incoming freshmen (at this college) who attended a public high school
- Then, the chance of graduation is referring to the probability students graduate from this college depending on the type of high school they attended....
- Answer Key:
- You will receive a detailed key with all work shown tomorrow in class
- Binge Drinking:
- 1.) 0.1252
- 2.) 0.0748
- 3.) 0.0171
- 4.) 0.5974
- 5.) 0.4175
- Private College
- a.) 0.795
- b.) 0.75
- c.) 0.90
- d.) 0.6604
- e.) 0.1463
- f.) No....incoming freshmen who attended a private high school are more likely to graduate (90% chance) than incoming freshmen who attended a public high school (75% chance).
- Questions (in case you lost yours or were out)....
Today's Class Recap:
- Stamp = practice identifying conditional probability
- HW Questions (book and worksheet)
- New Stuff: Using Tree Diagrams (and conditional probability)
- Completed the "middle right slide" example (about going to Canada and Mexico) using conditional probability
- Our homework tonight is also based on these ideas
- Here are the notes/example from class today:
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