1. Section 7.2
Students will explore more with probability. Students will do conditional probability, independent probability and using two way tables to get probability.

2. Eight the hard way
Work through 7-67 page 398 Discuss answers

3. Conditional Probability
Probability of an event given another event has occured Independent and Dependent Independent – first event has nothing to do with second flipping a coin and roiling a die Dependent – first event affects the outcome of the second Picking a marble and not replacing it Specific section of a table of data, like eight the hard way Mutually Exclusive – if they both can’t occur at the same time

4. 7-68
Using a 2 way table When do you use all the data when do you use specific sections Look how the questions are worded how would this be written as a probability

5. Example
What is the probability of guessing a student doesn’t have long hair? What is the probability the student is wearing jeans and doesn’t have long hair? Are these independent? Are these events mutually exclusive?

6. Build a Farm
7-79 pg 403 If we already know we have a cow what is the probability is was red Prob red over total

7. Conditional Probability
P( A given B) = P(A and B) / P(B) Pg 411 Double Spin

8. Homework
Worksheet on probability