What is an indicator random variable

Random variable

Elementary Stochastics pp 71-114 | Cite as

  • Ehrhard Behrends

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The second part of this book deals with fundamental concepts of probability theory: random variables and conditional probabilities. Chapter 3 could be put under the leitmotif "Compression of information". Sometimes you don't want to know exactly: For example, it doesn't really matter which six lottery numbers were drawn on Saturday, it is more interesting how many correct ones I ticked. To make this more precise, random variables are introduced in Section 3.1. Each random variable gives rise to a new probability space, which describes the probabilities of the “compressed information”. That is the subject of Section 3.2.

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Copyright information

© Vieweg + Teubner Verlag | Springer Fachmedien Wiesbaden GmbH, Wiesbaden 2013

Authors and Affiliations

  1. 1. Department of Mathematics and Computer ScienceFree University of BerlinBerlinGermany