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Lecture16 - GEM2900 Understanding Uncertainty Statistical...

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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
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Towards looking at real data GEM2900: Understanding Uncertainty & Statistical Thinking DSAP, NUS, Semester 1, 2008/2009 – 125 squaresolid We observe data. squaresolid These data have been generated by some random process from a population (may be hypothetical). square E.g. 1: Political opinion poll seeks simple random sample from population of eligible voters. square E.g. 2: Scientist records time between successive nerve pulses under certain stimuli. Population hypothetical — results from an infinite number of individuals subjected to same stimuli. squaresolid Descriptive statistics are used to summarise the data numerically or graphically. Woolfson (2008, Chapters 9–12) Huff, D. (1954). How to lie with statistics , V. Gollancz. (There are several later reprints.) See work by Edward Tufte and others on how to produce good graphics.
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