Lecture17 - GEM2900 Understanding Uncertainty&...

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Unformatted text preview: GEM2900: Understanding Uncertainty & Statistical Thinking DSAP, NUS, Semester 1, 2008/2009 – 1 GEM2900: Understanding Uncertainty & Statistical Thinking Berwin Turlach [email protected] Department of Statistics and Applied Probability National University of Singapore Reminder GEM2900: Understanding Uncertainty & Statistical Thinking DSAP, NUS, Semester 1, 2008/2009 – 134 The third CA is due Thursday, 16 October, at 4pm. Please read the relevant announcement on IVLE. Please download the question sheet from the Assignments folder in the workbin on IVLE. I will instruct IVLE to send reminder e-mails on Wednesday and Thursday morning. Please submit your answers if you do not want to receive these e-mails. Random Variables GEM2900: Understanding Uncertainty & Statistical Thinking DSAP, NUS, Semester 1, 2008/2009 – 135 A real valued function defined on a sample space is called a random variable (r.v.) . In other words, a random variable is any rule that associates a number with each outcome in S (a given sample space of some experiment). Example: Toss a coin The sample space is S = { H , T } . X = braceleftBigg 1 if H occurs if T occurs is a random variable. If the coin is fair, then P ( H ) = P ( X = 1) = 1 2 = P ( X = 0) = P ( T ) Discrete Random Variables GEM2900: Understanding Uncertainty & Statistical Thinking...
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Lecture17 - GEM2900 Understanding Uncertainty&...

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