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This 2 page Class Notes was uploaded by Morgan Routman on Thursday February 19, 2015. The Class Notes belongs to SOC 1003 at George Washington University taught by Professor Schwartz in Spring2015. Since its upload, it has received 110 views. For similar materials see Intro to Criminal Justice in Sociology at George Washington University.
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Date Created: 02/19/15
STAT 1053 Week 5 21115 546 PM o Combinations o Permutations Arrangements Probability o A composition of two or more events 0 Can be a union or an intersection n Elements in A or B or Both a Elements in both A and B n Elements in the sample that aren t in A 0 Sample Probabilities must be between 0 and 1 Rules 0 Events that share no sample points 0 For any two events If the events are mutually exclusive 0 A U B c AAC 0 BAc o A n B c AAc U BAc o If A Q B subset ofB then A U B B A n B A PA s PB STAT 1053 Week 5 part two 21115 546 PM 0 Probability of events change when external information is added 0 Particularly if another related event has occurred Ie probability of snow when its 45 degrees 0 PAlB PA n BPB PB o o PAlS PA o PAclB 1 PA n B o PA n B PAPBA PB PBPAB 0 Can be applied to longer problems PA n B n C PAPBAPC A n B
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