lect12 - • How do I calculate the probability of getting...

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UCF Physics: AST 5765/4762: (Advanced) Astronomical Data Analysis Fall 2009 Lecture Notes: 12. Work With Stats, Errors, and Fitting 1 Check In: 12:30 — 12:35, 5 min If you are stuck, comment out stuff that doesn’t run or use fake numbers to get it to run, and say so in a comment. Questions before we start? 2 Statistics Review: 12:35 — 12:55, 20 min Put up a Gaussian histogram on the board What is the mean? What is the width? FWHM What is the mode? What is the range? Where is the median Add some outlying bumps Where is the mean now? Where is the median? If we make it wider, what happens to the height and why? If we shift the mean, what happens to the height and why?
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Unformatted text preview: • How do I calculate the probability of getting an event in a certain subrange of x ? • Put up a multi-modal histogram, ask questions above • For the Poisson distribution, have students come up and draw it for various N • What is the uniform distribution? 1 3 Errors: 12:55 — 13:10, 15 min • Do some random math problems. • Have students derive error for addition, multiplication, power, division, log, sin on board. • Discuss MCMC and errors, how to handle constrained (positive-definite) phase spaces 4 Fitting: 13:10 — 13:15, 5 min • Talk about least squares 5 Q&A: 13:15 — 13:20, 15 min 2...
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This note was uploaded on 11/09/2009 for the course AST 4762 taught by Professor Harrington during the Fall '09 term at University of Central Florida.

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lect12 - • How do I calculate the probability of getting...

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