## Wednesday, January 19, 2011

### Wednesday, January 19, 2011

Today's opener (pdf).

Today's lesson (pdf) looked at the concepts of probability and odds.

1. Play around with the Cold War Kids video and try to answer the two questions from the lesson:

a) If we set all of the tracks before we start, how many different videos could we watch?

b) How many clips did each musician have to record?

c) Bonus question: If we started watching all the possible different versions we could watch starting tomorrow in class, and only watched during our Algebra class (and did nothing else - you wish), on what day and at what time would we finish watching the videos? (Helpful link: AHS Calendar)

2. Here are two interesting articles about probability that you might be interested in.

5 Worries Parents Should Drop, and 5 They Shouldn't looks at what parents typically fear will happen to their kids (but is actually pretty unlikely), and what they should be concerned about (because they have a higher probability of happening).

Chances Are looks at a conditional probability problem involving the likelihood of having breast cancer is you have a positive mammogram. We won't be getting into conditional probability this year, but it's still an interesting and important article for you to see how probability is something you need a good handle on in order to make good health care decisions.

3. Watch (including completing the Guided Practice and Self-Check sections) the Find Probability and Odds video.