Introduction to Statistical Methods
Introduction to Statistical Methods STAT 301
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Mrs. Triston Collier
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This 1 page Class Notes was uploaded by Mrs. Triston Collier on Thursday September 17, 2015. The Class Notes belongs to STAT 301 at University of Wisconsin - Madison taught by Staff in Fall. Since its upload, it has received 41 views. For similar materials see /class/205083/stat-301-university-of-wisconsin-madison in Statistics at University of Wisconsin - Madison.
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Date Created: 09/17/15
STAT 301 TA Lane Burgette burgette statwiscedu DISCUSSION 1 January 25 and 26 2005 Probability of an Event 0 Experiment process of a phenomenon that has variation in its outcomes 0 Sample space collection of all possible distinct outcomes of the experiment 0 Elementary outcome Simple event each individual distinct possible outcome 0 Event set of elementary outcomes possessing a designated feature 0 Probability of an event a numerical value representing the proportion of times the event is expected to occur when the experiment is repeated under identical condition Method of Assigning Probability 0 Uniform probability model S sample space A event 1314 7 Number of outcomes in A 7 Number of outcomes in S 0 Long run relative frequency Number of times A occurs in N trials relative frequency of event A in N trials N Example 1 Flip a fair coin twice If you get heads both times or tails both time roll a six sided die a Draw a tree diagram b What is S Is it nite c Are all the outcomes equally likely What are the probabilities Example 2 Flip a coin until the rst heads comes up a What does S look like Is it nite Example 3 Roll two fair six sided dice and add the two numbers a Are all the rolls equally likely b Is there a way we can think of S so that it is a uniform probability model c What is the probability of rolling a 3 A 5 Off Hour R 230 to 430 pm 1 1245F MSC
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