Week 4 Notes
Week 4 Notes STAT 200
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This 2 page Class Notes was uploaded by Kelsey Marr on Thursday February 5, 2015. The Class Notes belongs to STAT 200 at Pennsylvania State University taught by Andrew Wiesner in Winter2015. Since its upload, it has received 79 views. For similar materials see Elementary Statistics in Statistics at Pennsylvania State University.
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Date Created: 02/05/15
Stat 200 Wiesner Week 4 Notes Probability Probability o The keys Identify events Identify the probabilities to those events Ex pass Monday s exam with A B or C what is the probability to pass 0 Let P be the event you pass PP probability of passing Complement is the event of all outcomes not in the event of interest Complement to pass fail or not pass D and F 0 Rules 1 Pevent Pcomplement 1 2 O ltPA g 1 Conditional Probability o Formulas PAB PA and BPB quotquot means the following event is given not divide Are 2 events independent 0 Yes if PA x PB PA and B 0 Decision Tree 0 Picture of the example from class 1 quotw If you don t like the tree you can use a contingency table Win Lose Totals First Down 6 O 6 No First Down 188 212 4 Totals 788 212 10
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