Transcription of Chapter 1
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RS Chapter 1 Random Variables6/14/20191 Chapter 1 Probability theory : IntroductionBasic Probability General In a probability space ( , , P), the set is the set of all possible outcomesof a probability experiment . Mathematically, is just a set, with elements . It is called the sample space . An eventis the answer to a Yes/No question. Equivalently, an event is a subset of the probability space : A . Think of A as the set of outcomes where the answer is Yes , and Acis the complementary set where the answer is No . A -algebra is a mathematical model of a state of partial knowledge about the outcome. Informally, if is a -algebra and A , we say that A if we know whether A or Chapter 1 Random Variables6/14/20192 Definitions AlgebraDefinitions: Semiring(of sets)A collection of sets Fis called a semiringif it satisfies: F.
1 Chapter 1 Probability Theory: Introduction Basic Probability – General ... • We have two measurable spaces (Ω1, Σ1), and (Ω2, Σ2). We want to define a measure on the (product) space Ω12, which reflects the structure of the original measure spaces. Definition: ...
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